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+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+  When we speak of free software, we are referring to freedom, not
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+
+  Developers that use our General Public Licenses protect your rights
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+  A secondary benefit of defending all users' freedom is that
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+The GNU General Public License permits making a modified version and
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+code of the modified version.
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+  An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals.  This is
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+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.
\ No newline at end of file
diff --git a/src/utils/Fetcher.jsx b/src/utils/Fetcher.jsx
index 6444b34..be3971c 100644
--- a/src/utils/Fetcher.jsx
+++ b/src/utils/Fetcher.jsx
@@ -197,6 +197,13 @@ const DeleteThing = id => {
   })
 }
 
+const GetThingHistory = (id, offset) => {
+  return Fetch(`${API_URL}/things/${id}/history?offset=${offset}`, {
+    method: 'GET',
+    headers: HEADERS(),
+  })
+}
+
 const CreateLongLiveToken = name => {
   return Fetch(`${API_URL}/users/tokens`, {
     method: 'POST',
@@ -236,6 +243,7 @@ export {
   GetCircleMemberRequests,
   GetLongLiveTokens,
   GetSubscriptionSession,
+  GetThingHistory,
   GetThings,
   GetUserCircle,
   GetUserProfile,
diff --git a/src/views/ChoreEdit/ChoreEdit.jsx b/src/views/ChoreEdit/ChoreEdit.jsx
index e8eb17d..568b20a 100644
--- a/src/views/ChoreEdit/ChoreEdit.jsx
+++ b/src/views/ChoreEdit/ChoreEdit.jsx
@@ -506,7 +506,7 @@ const ChoreEdit = () => {
           </FormControl>
         )}
       </Box>
-      {!['once', 'no_repeat'].includes(frequencyType) && (
+      {!['once', 'no_repeat', 'trigger'].includes(frequencyType) && (
         <Box mt={2}>
           <Typography level='h4'>Scheduling Preferences: </Typography>
           <Typography level='h5'>
diff --git a/src/views/ChoreEdit/ThingTriggerSection.jsx b/src/views/ChoreEdit/ThingTriggerSection.jsx
index 7a040ad..981f84b 100644
--- a/src/views/ChoreEdit/ThingTriggerSection.jsx
+++ b/src/views/ChoreEdit/ThingTriggerSection.jsx
@@ -6,7 +6,6 @@ import {
   Card,
   Chip,
   FormControl,
-  FormLabel,
   Input,
   ListItem,
   ListItemContent,
@@ -91,7 +90,7 @@ const ThingTriggerSection = ({
       <Typography level='h5'>
         Trigger a task when a thing state changes to a desired state
       </Typography>
-      {things.length !== 0 && (
+      {things?.length === 0 && (
         <Typography level='body-sm'>
           it's look like you don't have any things yet, create a thing to
           trigger a task when the state changes.
diff --git a/src/views/Chores/ChoreCard.jsx b/src/views/Chores/ChoreCard.jsx
index 0b2a408..8efaf04 100644
--- a/src/views/Chores/ChoreCard.jsx
+++ b/src/views/Chores/ChoreCard.jsx
@@ -125,7 +125,7 @@ const ChoreCard = ({ chore, performers, onChoreUpdate, onChoreRemove, sx }) => {
       }
     })
     setIsDisabled(true)
-    setTimeout(() => setIsDisabled(false), 5000) // Re-enable the button after 5 seconds
+    setTimeout(() => setIsDisabled(false), 3000) // Re-enable the button after 5 seconds
   }
   const handleChangeDueDate = newDate => {
     if (activeUserId === null) {
diff --git a/src/views/Modals/Inputs/CreateThingModal.jsx b/src/views/Modals/Inputs/CreateThingModal.jsx
index 59263ff..ffce51c 100644
--- a/src/views/Modals/Inputs/CreateThingModal.jsx
+++ b/src/views/Modals/Inputs/CreateThingModal.jsx
@@ -1,6 +1,8 @@
 import {
   Box,
   Button,
+  FormControl,
+  FormHelperText,
   FormLabel,
   Input,
   Modal,
@@ -14,8 +16,9 @@ import { useEffect, useState } from 'react'
 
 function CreateThingModal({ isOpen, onClose, onSave, currentThing }) {
   const [name, setName] = useState(currentThing?.name || '')
-  const [type, setType] = useState(currentThing?.type || 'numeric')
+  const [type, setType] = useState(currentThing?.type || 'number')
   const [state, setState] = useState(currentThing?.state || '')
+  const [errors, setErrors] = useState({})
   useEffect(() => {
     if (type === 'boolean') {
       if (state !== 'true' && state !== 'false') {
@@ -27,7 +30,31 @@ function CreateThingModal({ isOpen, onClose, onSave, currentThing }) {
       }
     }
   }, [type])
+
+  const isValid = () => {
+    const newErrors = {}
+    if (!name || name.trim() === '') {
+      newErrors.name = 'Name is required'
+    }
+
+    if (type === 'number' && isNaN(state)) {
+      newErrors.state = 'State must be a number'
+    }
+    if (type === 'boolean' && !['true', 'false'].includes(state)) {
+      newErrors.state = 'State must be true or false'
+    }
+    if ((type === 'text' && !state) || state.trim() === '') {
+      newErrors.state = 'State is required'
+    }
+
+    setErrors(newErrors)
+    return Object.keys(newErrors).length === 0
+  }
+
   const handleSave = () => {
+    if (!isValid()) {
+      return
+    }
     onSave({ name, type, id: currentThing?.id, state: state || null })
     onClose()
   }
@@ -36,64 +63,81 @@ function CreateThingModal({ isOpen, onClose, onSave, currentThing }) {
     <Modal open={isOpen} onClose={onClose}>
       <ModalDialog>
         {/* <ModalClose /> */}
-        <Typography variant='h4'>P;lease add info</Typography>
-        <FormLabel>Name</FormLabel>
-
-        <Textarea
-          placeholder='Thing name'
-          value={name}
-          onChange={e => setName(e.target.value)}
-          sx={{ minWidth: 300 }}
-        />
-        <FormLabel>Type</FormLabel>
-        <Select value={type} sx={{ minWidth: 300 }}>
-          {['text', 'number', 'boolean'].map(type => (
-            <Option value={type} key={type} onClick={() => setType(type)}>
-              {type.charAt(0).toUpperCase() + type.slice(1)}
-            </Option>
-          ))}
-        </Select>
-
-        {type === 'text' && (
-          <>
-            <FormLabel>Value</FormLabel>
-            <Input
-              placeholder='Thing value'
-              value={state || ''}
-              onChange={e => setState(e.target.value)}
+        <Typography level='h4'>
+          {currentThing?.id ? 'Edit' : 'Create'} Thing
+        </Typography>
+        <FormControl>
+          <FormLabel>
+            Name
+            <Textarea
+              placeholder='Thing name'
+              value={name}
+              onChange={e => setName(e.target.value)}
               sx={{ minWidth: 300 }}
             />
-          </>
+          </FormLabel>
+          <FormHelperText color='danger'>{errors.name}</FormHelperText>
+        </FormControl>
+        <FormControl>
+          <FormLabel>
+            Type
+            <Select value={type} sx={{ minWidth: 300 }}>
+              {['text', 'number', 'boolean'].map(type => (
+                <Option value={type} key={type} onClick={() => setType(type)}>
+                  {type.charAt(0).toUpperCase() + type.slice(1)}
+                </Option>
+              ))}
+            </Select>
+          </FormLabel>
+          <FormHelperText color='danger'>{errors.type}</FormHelperText>
+        </FormControl>
+        {type === 'text' && (
+          <FormControl>
+            <FormLabel>
+              Value
+              <Input
+                placeholder='Thing value'
+                value={state || ''}
+                onChange={e => setState(e.target.value)}
+                sx={{ minWidth: 300 }}
+              />
+            </FormLabel>
+            <FormHelperText color='danger'>{errors.state}</FormHelperText>
+          </FormControl>
         )}
         {type === 'number' && (
-          <>
-            <FormLabel>Value</FormLabel>
-            <Input
-              placeholder='Thing value'
-              type='number'
-              value={state || ''}
-              onChange={e => {
-                setState(e.target.value)
-              }}
-              sx={{ minWidth: 300 }}
-            />
-          </>
+          <FormControl>
+            <FormLabel>
+              Value
+              <Input
+                placeholder='Thing value'
+                type='number'
+                value={state || ''}
+                onChange={e => {
+                  setState(e.target.value)
+                }}
+                sx={{ minWidth: 300 }}
+              />
+            </FormLabel>
+          </FormControl>
         )}
         {type === 'boolean' && (
-          <>
-            <FormLabel>Value</FormLabel>
-            <Select sx={{ minWidth: 300 }} value={state}>
-              {['true', 'false'].map(value => (
-                <Option
-                  value={value}
-                  key={value}
-                  onClick={() => setState(value)}
-                >
-                  {value.charAt(0).toUpperCase() + value.slice(1)}
-                </Option>
-              ))}
-            </Select>
-          </>
+          <FormControl>
+            <FormLabel>
+              Value
+              <Select sx={{ minWidth: 300 }} value={state}>
+                {['true', 'false'].map(value => (
+                  <Option
+                    value={value}
+                    key={value}
+                    onClick={() => setState(value)}
+                  >
+                    {value.charAt(0).toUpperCase() + value.slice(1)}
+                  </Option>
+                ))}
+              </Select>
+            </FormLabel>
+          </FormControl>
         )}
 
         <Box display={'flex'} justifyContent={'space-around'} mt={1}>
@@ -108,5 +152,4 @@ function CreateThingModal({ isOpen, onClose, onSave, currentThing }) {
     </Modal>
   )
 }
-
 export default CreateThingModal
diff --git a/src/views/Things/ThingsHistory.jsx b/src/views/Things/ThingsHistory.jsx
index 39f0e30..4b32b0e 100644
--- a/src/views/Things/ThingsHistory.jsx
+++ b/src/views/Things/ThingsHistory.jsx
@@ -1,11 +1,171 @@
-import { Container, Typography } from '@mui/joy'
+import { EventBusy } from '@mui/icons-material'
+import {
+  Box,
+  Button,
+  Chip,
+  Container,
+  List,
+  ListDivider,
+  ListItem,
+  ListItemContent,
+  Typography,
+} from '@mui/joy'
+import moment from 'moment'
+import { useEffect, useState } from 'react'
+import { Link, useParams } from 'react-router-dom'
+import { GetThingHistory } from '../../utils/Fetcher'
 
 const ThingsHistory = () => {
+  const { id } = useParams()
+  const [thingsHistory, setThingsHistory] = useState([])
+  const [noMoreHistory, setNoMoreHistory] = useState(false)
+  const [errLoading, setErrLoading] = useState(false)
+  useEffect(() => {
+    GetThingHistory(id, 0, 10).then(resp => {
+      if (resp.ok) {
+        resp.json().then(data => {
+          setThingsHistory(data.res)
+          if (data.res.length < 10) {
+            setNoMoreHistory(true)
+          }
+        })
+      } else {
+        setErrLoading(true)
+      }
+    })
+  }, [])
+
+  const handleLoadMore = () => {
+    GetThingHistory(id, thingsHistory.length).then(resp => {
+      if (resp.ok) {
+        resp.json().then(data => {
+          setThingsHistory([...thingsHistory, ...data.res])
+          if (data.res.length < 10) {
+            setNoMoreHistory(true)
+          }
+        })
+      }
+    })
+  }
+
+  const formatTimeDifference = (startDate, endDate) => {
+    const diffInMinutes = moment(startDate).diff(endDate, 'minutes')
+    let timeValue = diffInMinutes
+    let unit = 'minute'
+
+    if (diffInMinutes >= 60) {
+      const diffInHours = moment(startDate).diff(endDate, 'hours')
+      timeValue = diffInHours
+      unit = 'hour'
+
+      if (diffInHours >= 24) {
+        const diffInDays = moment(startDate).diff(endDate, 'days')
+        timeValue = diffInDays
+        unit = 'day'
+      }
+    }
+
+    return `${timeValue} ${unit}${timeValue !== 1 ? 's' : ''}`
+  }
+  if (errLoading || !thingsHistory) {
+    return (
+      <Container
+        maxWidth='md'
+        sx={{
+          textAlign: 'center',
+          display: 'flex',
+          // make sure the content is centered vertically:
+          alignItems: 'center',
+          justifyContent: 'center',
+          flexDirection: 'column',
+          height: '50vh',
+        }}
+      >
+        <EventBusy
+          sx={{
+            fontSize: '6rem',
+            // color: 'text.disabled',
+            mb: 1,
+          }}
+        />
+
+        <Typography level='h3' gutterBottom>
+          No history found
+        </Typography>
+        <Typography level='body1'>
+          It's look like there is no history for this thing yet.
+        </Typography>
+        <Button variant='soft' sx={{ mt: 2 }}>
+          <Link to='/things'>Go back to things</Link>
+        </Button>
+      </Container>
+    )
+  }
+
   return (
     <Container maxWidth='md'>
       <Typography level='h3' mb={1.5}>
-        Summary:
+        History:
       </Typography>
+      <List sx={{ p: 0 }}>
+        {thingsHistory.map((history, index) => (
+          <>
+            <ListItem sx={{ gap: 1.5, alignItems: 'flex-start' }}>
+              <ListItemContent sx={{ my: 0 }}>
+                <Box
+                  sx={{
+                    display: 'flex',
+                    justifyContent: 'space-between',
+                    alignItems: 'center',
+                  }}
+                >
+                  <Typography level='body1' sx={{ fontWeight: 'md' }}>
+                    {moment(history.updatedAt).format(
+                      'ddd MM/DD/yyyy HH:mm:ss',
+                    )}
+                  </Typography>
+                  <Chip>{history.state === '1' ? 'Active' : 'Inactive'}</Chip>
+                </Box>
+              </ListItemContent>
+            </ListItem>
+            {index < thingsHistory.length - 1 && (
+              <>
+                <ListDivider component='li'>
+                  {/* time between two completion: */}
+                  {index < thingsHistory.length - 1 &&
+                    thingsHistory[index + 1].createdAt && (
+                      <Typography level='body3' color='text.tertiary'>
+                        {formatTimeDifference(
+                          history.createdAt,
+                          thingsHistory[index + 1].createdAt,
+                        )}{' '}
+                        before
+                      </Typography>
+                    )}
+                </ListDivider>
+              </>
+            )}
+          </>
+        ))}
+      </List>
+      {/* Load more Button  */}
+      <Box
+        sx={{
+          display: 'flex',
+          justifyContent: 'center',
+          mt: 2,
+        }}
+      >
+        <Button
+          variant='plain'
+          fullWidth
+          color='primary'
+          onClick={handleLoadMore}
+          disabled={noMoreHistory}
+        >
+          {noMoreHistory ? 'No more history' : 'Load more'}
+        </Button>
+      </Box>
     </Container>
   )
 }
diff --git a/src/views/Things/ThingsView.jsx b/src/views/Things/ThingsView.jsx
index deb2df5..8b2beb6 100644
--- a/src/views/Things/ThingsView.jsx
+++ b/src/views/Things/ThingsView.jsx
@@ -12,12 +12,15 @@ import {
   Box,
   Card,
   Chip,
+  CircularProgress,
   Container,
   Grid,
   IconButton,
+  Snackbar,
   Typography,
 } from '@mui/joy'
 import { useEffect, useState } from 'react'
+import { useNavigate } from 'react-router-dom'
 import {
   CreateThing,
   DeleteThing,
@@ -27,13 +30,14 @@ import {
 } from '../../utils/Fetcher'
 import ConfirmationModal from '../Modals/Inputs/ConfirmationModal'
 import CreateThingModal from '../Modals/Inputs/CreateThingModal'
-
 const ThingCard = ({
   thing,
   onEditClick,
   onStateChangeRequest,
   onDeleteClick,
 }) => {
+  const [isDisabled, setIsDisabled] = useState(false)
+  const Navigate = useNavigate()
   const getThingIcon = type => {
     if (type === 'text') {
       return <Flip />
@@ -49,6 +53,15 @@ const ThingCard = ({
       return <ToggleOff />
     }
   }
+
+  const handleRequestChange = thing => {
+    setIsDisabled(true)
+    onStateChangeRequest(thing)
+    setTimeout(() => {
+      setIsDisabled(false)
+    }, 2000)
+  }
+
   return (
     <Card
       variant='outlined'
@@ -71,6 +84,9 @@ const ThingCard = ({
               flexDirection: 'row',
               gap: 1,
             }}
+            onClick={() => {
+              Navigate(`/things/${thing?.id}`)
+            }}
           >
             <Typography level='title-lg' component='h2'>
               {thing?.name}
@@ -91,21 +107,39 @@ const ThingCard = ({
         <Grid item xs={3}>
           <Box display='flex' justifyContent='flex-end' alignItems='flex-end'>
             {/* <ButtonGroup> */}
-            <IconButton
-              variant='solid'
-              color='success'
-              onClick={() => {
-                onStateChangeRequest(thing)
-              }}
-              sx={{
-                borderRadius: '50%',
-                width: 50,
-                height: 50,
-                zIndex: 1,
-              }}
-            >
-              {getThingIcon(thing?.type)}
-            </IconButton>
+            <div className='relative grid place-items-center'>
+              <IconButton
+                variant='solid'
+                color='success'
+                onClick={() => {
+                  handleRequestChange(thing)
+                }}
+                sx={{
+                  borderRadius: '50%',
+                  width: 50,
+                  minWidth: 50,
+                  height: 50,
+                  zIndex: 1,
+                }}
+                disabled={isDisabled}
+              >
+                {getThingIcon(thing?.type)}
+              </IconButton>
+              {isDisabled && (
+                <CircularProgress
+                  variant='solid'
+                  color='success'
+                  size='md'
+                  sx={{
+                    color: 'success.main',
+                    position: 'absolute',
+                    '--CircularProgress-size': '55px',
+
+                    zIndex: 0,
+                  }}
+                />
+              )}
+            </div>
             <IconButton
               // sx={{ width: 15 }}
               variant='soft'
@@ -154,6 +188,10 @@ const ThingsView = () => {
   const [isShowCreateThingModal, setIsShowCreateThingModal] = useState(false)
   const [createModalThing, setCreateModalThing] = useState(null)
   const [confirmModelConfig, setConfirmModelConfig] = useState({})
+
+  const [isSnackbarOpen, setIsSnackbarOpen] = useState(false)
+  const [snackBarMessage, setSnackBarMessage] = useState('')
+
   useEffect(() => {
     // fetch things
     GetThings().then(result => {
@@ -184,6 +222,8 @@ const ThingsView = () => {
         }
       })
     })
+    setSnackBarMessage('Thing saved successfully')
+    setIsSnackbarOpen(true)
   }
   const handleEditClick = thing => {
     setCreateModalThing(thing)
@@ -240,6 +280,8 @@ const ThingsView = () => {
         })
       })
     }
+    setSnackBarMessage('Thing state updated successfully')
+    setIsSnackbarOpen(true)
   }
 
   return (
@@ -317,6 +359,19 @@ const ThingsView = () => {
         )}
         <ConfirmationModal config={confirmModelConfig} />
       </Box>
+      <Snackbar
+        open={isSnackbarOpen}
+        onClose={() => {
+          setIsSnackbarOpen(false)
+        }}
+        autoHideDuration={3000}
+        variant='soft'
+        color='success'
+        size='lg'
+        invertedColors
+      >
+        <Typography level='title-md'>{snackBarMessage}</Typography>
+      </Snackbar>
     </Container>
   )
 }
diff --git a/tailwind.config.js b/tailwind.config.js
index 373e459..1dc797e 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -2,21 +2,7 @@ export default {
   content: ['./index.html', './src/**/*.{js,ts,jsx,tsx}'],
   theme: {
     extend: {
-      colors: {
-        ice: {
-          50: '#CFECF7',
-          100: '#B9E3F3',
-          200: '#8DD1EC',
-          300: '#61C0E5',
-          400: '#36AEDD',
-          500: '#2093C0',
-          600: '#197599',
-          700: '#135771',
-          800: '#0C394A',
-          900: '#061B23',
-          950: '#020B0F',
-        },
-      },
+      colors: {},
     },
   },
   darkMode: 'class',