In certain epochs, you are correct.
In 60 millenniums, it would be hard pressed to have all information to determine if there was a time when things were different.
For an example:
Scientists found frozen plant fossils, preserved under a mile of ice on Greenland. The discovery helps confirm a new and troubling understanding that the Greenland Ice Sheet has melted entirely during recent warm periods in Earth's history -- like the one we are now creating with human-caused...
www.sciencedaily.com
Scientists found frozen plant fossils, preserved under a mile of ice on Greenland. The discovery helps confirm a new and troubling understanding that the Greenland Ice Sheet has melted entirely during recent warm periods in Earth's history
Could that be the time when all was well? I wouldn't know...