41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
52778
4106
2
Public Timelines
FAQ

jan 1, 1982 - Tomlinson estimates that there were over 1000 different GIS systems in use across the US.

Description:

(Coppock and Rhind, 1991)

Added to timeline:

22 Sep 2017
0
0
1084

Date:

jan 1, 1982
Now
~ 44 years ago