eLinguistics.net will publish step by step timeline maps of the evolution of languages. As a first beta edition you can see the timeline
for the Indo-European languages as well as Altaic and Uralic languages, as designed on the basis of the eLinguistics data.
Indo-European evolution timeline:
You can also download this timeline as pdf -
IE evolution timeline PDF format or refer only to it at:
Indo-European language tree
Afroasiatic evolution timeline:
You can also download this timeline as pdf -
Afroasiatic evolution timeline PDF format