Map to be used as a starting point for discussion for objects over time on maps.
Object
Startdate
Enddate
A
&lt;Y1
&gt;Y2 AND &lt;Y3
B
&lt;Y1
&gt;Y3
C
&gt;Y1 AND &lt;Y2
&gt;Y3
D
&gt;Y1 AND &lt;Y2
&gt;Y2 AND &lt;Y3
Own work. Based on File:Béthencourt map.svg.
Jan Ainali (WMSE)