Who was jacob riis, and what impact did his book “how the other half lives” have on the reform movement

Jacob Riis was an American reformer and muck raking journalist. He exposed the horrid conditions that immigrants and the poor were forced to endure in rapidly industrializing cities. He supported increased social programs for the poor and expansion of social welfare programs. His work brought more attention to the plight of the poor, fueled the creation of more services during the Progressive Era for the poor and inaugurated the use of photojournalism as a tool in addressing social ills.

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.

oil! is what i am assuming