Explore Twitter Geotechtips, Autocad and more!

La vida antes de #AutoCad 😱 vía Twitter Geotechtips

Foto de Exclusivas Imanara. Estacionamiento vertical de Chicago en 1936. Vía Twitter @historyepics @GeotechTips

Foto de Exclusivas Imanara. Construcción de pavimentos por los romanos. Vía Twitter @GeotechTips @jjpotti

Thomas Fuller; African slave and mathematician 1710-1790. | In most discussions of people with extraordinary powers of mental calculation, there is some mention of Thomas Fuller, an African, shipped to America in 1724 as a slave at the age of 14. He was born in 1710 Africa somewhere between present day Liberia and Benin. Late in his life his remarkable powers of calculation made him a tool of abolitionists due demonstrate blacks are not mentally inferior to whites. [Read more...]

Historic Newspapers~ Red Wing Daily Republican dated 08/01/1914 -- "Extra" edition announcing the beginning of World War I. On exhibit in the News Corporation News History Gallery at the Newseum. Newseum collection Photo credit: Newseum collection

Pinterest • The world’s catalogue of ideas