Is it possible past human civilizations were more advance?

[jimmy]

Since scientists claim mankind has been around for a ridiculously long time, is it possible past civilizations were more advanced, destroyed themselves, and then started over. Is there any theory on this?

 

[brooke]

they built soooooo mcuh big struchtures from just man power dang if we were to do tht to day yeah no

 

[z_ali]

It could be true because they used natural resource around them