Why Was The Bridge Invented?

Why Was The Bridge Invented? Bridge is a structure that provides passage over obstacles such as valleys, rough terrain or bodies of water by spanning those obstacles with natural or manmade materials. … This invention enabled them to build much more sturdier, powerful and larger structures than any civilization before them. Why was the bridge

What Is The Theory About Migration From Asia To America?

What Is The Theory About Migration From Asia To America? The Bering Land Bridge What are the theories of migration to the Americas? Two theories currently explain the arrival of humans in the Americas: the Bering Strait land bridge theory and the coastal migration theory. The timing of early human occupation of the Americas is