George Washington Carver was a botanist and also an inventor, he was born into slavery. He became one of the worlds prominent scientists.
Answer:
the sled dogs could travel further without rest
The empires split into many smaller parts
It was Babylon, The Euphrates River which was supposed to be protecting the outside of Babylon was diverted by Cyrus's army so that it would be dry enough for them to walk through to the open gates that were left open.
