Answer:archeologist have found bones of dinosaurs.
Explanation:
President Abraham Lincoln issued the Emancipation Proclamation on January 1, 1863, as the nation approached its third year of bloody civil war. The proclamation declared "that all persons held as slaves" within the rebellious states "are, and henceforward shall be free."
Archival research &a Oral history are two ways.
Mayan culture can still exist because of Mayan descendants that still carry out Mayan cultures and traditions. Also, they can still make art and pottery that could represent beautiful Mayan cultural art and designs.
I hope this helps, and have both a good night and life! :D
The Answer is to Conserve resources for war effort
