That time period was known as the roaring 20s, america was at its best, but the depression started in 1930... so the late 20s economy would be good but starting to fail
Hm...
1) we would have to compete with them for food
2) we'd have to run like h if we saw a predator
3) we'd have much more different cities
4) some inventions might not have been invented
5) some modern species would be extinct, or not exist
In the Hindu Society your karma would determine your reincarnation
