Från Rilpedia

<timeline>

ImageSize = width:800 height:110 PlotArea = left:80 right:50 bottom:20 top:10 AlignBars = justify

DateFormat = dd/mm/yyyy Period = from:1991 till:2006 TimeAxis = orientation:horizontal ScaleMajor = unit:year increment:1 start:1991

PlotData=

 bar:Civilization color:black width:20 mark:(line,red) align:left fontsize:S
 at:01/08/1991 text: Civilization I
 at:05/03/1996 text: Civilization II
 at:09/02/1999 text: Alpha Centauri
 at:30/10/2001 text: Civilization III
 at:25/10/2005 text: Civilization IV

 bar:Freeciv color:black width:20 mark:(line,red) align:left fontsize:S
 at:05/01/1996 text: 1.0
 at:01/01/1997 text: 1.2.0 # ungefärligt datum
 at:15/05/1998 text: 1.6.0 # ungefärligt datum
 at:02/04/1999 text: 1.8.0
 at:21/02/2000 text: 1.10.0
 at:10/08/2001 text: 1.12.0
 at:20/01/2003 text: 1.14.0
 at:16/04/2005 text: 2.0.0

 bar:Övriga color:black width:20 mark:(line,red) align:left fontsize:S
 at:05/04/1999 text:" Civilization: Call to Power"

</timeline>