This Side Of Paradise message

[Mytran]

There's also a few descriptions of futuristic earth in the script of unmade pilot for Phase 2, "In Thy Image".

 

[johnnybear]

Earth probably had nuclear engines like the Romans of the period but it's a good guess that earth decided to confront the Romulan Empire of that period rather than make friends
JB

 

[Maurice]

There's also a few descriptions of futuristic earth in the script of unmade pilot for Phase 2, "In Thy Image".

Roddenberry describes San Francisco in some small detail in his 1975 script Star Trek II (what people call The God Thing), including the museum city, which is basically a theme park of the 20th century.