1- What book did Upton Sinclair write and what did the book reveal? (please answer if you can)

Upton Sinclair wrote the novel, The Jungle, hoping to turn the country toward socialism believing that capitalism was the root of all evil and corruption.

Hope that helped!

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.

the first forms of writing came from them in the form of pictographs around 3100 bc.