None - Barack Obama was the first black president.
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There were multiple significant social movements after World War I including:
1) Harlem Renaissance- This movement revolved around the explosion of African-American music, art, writing, and culture. During this era, many African-American citizens lived in big cities (like Harlem) and used their talents in order to captivate American citizens. This was a small step towards improved relations between white and black citizens, as they found common interests in things like jazz music.
2) Women's Rights Movement- Women played a significant part in the war effort during World War I. This prompted many women to demand more rights, especially voting rights. This movement that started right after World War I resulted in the passing of the 19th amendment, which granted women the right to vote.
Answer:
The significance of the battle, aside from being the victory Rameses II seemed most proud of, is that it eventually led to the first peace treaty in the history of the world signed between the Hittite and Egyptian Empires in 1258 BCE.
He ended up writing on Common sense urging the colonists to fight for their independence and a egalitarian government.
Negative environmental impacts from unsustainable farming practices include: Land conversion & habitat loss. Wasteful water consumption. Soil erosion and degradation.