World War erupted in 1914 and closed in 1919 with a treaty including a plan of reparations that British economist John Maynard Keynes immediately and vehemently predicted had the consequence of crumbling German society via hyperinflation — prediction fulfilled by 1923 . Upon 29 May 1919 's solar eclipse , Einstein 's gravitational theory apparently overthrew Newton 's — a revolution in science by astonishing prediction — a revolution bitterly resisted by many scientists but completed nearing 1930 . An yet race science flourished , appearing quite scientific to many , not obviously pseudoscience , while overtaking medicine and public health with excesses of negative eugenics
29 May 1919 's solar eclipse
Solar eclipse of May 29, 1919
Inductivism