Mouseover a timeline to identify the edifice on the map.
Mouseover or click on transition dates to highlight them.
Click on traces along timelines to project them on the central map and analyse potential spatial overlappings.
Deselect all traces to show the map again
Components of timelines:

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a (yellow thick line): lifeline of an edifice
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b punctual transition (< 1 year)
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c long lasting transition (> 1 year)
Types of transitions:

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a (blue): morphological change
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b (red): functional change
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c (black): destructive change
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g (green): archaeological survey
Uncertainty of dating:

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a (filled): confirmed dates
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b (outlined): unconfirmed dates
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c (outlined, dotted): hypothetical dates
Continuity of identity:

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a (difference in thickness): continuity of identity raising questions