How were economic competition and imperialism causes of world war 1

The war started mainly because of four aspects: Militarism, Alliances, Imperialism and Nationalism. ... The alliances system meant that a local conflict could easily result into an intimidating global one. The overall cause of World War was the assassination of Archduke Franz Ferdinand.

valentina tereshkova

soviet cosmonaut valentina tereshkova became the first woman to fly to space when she launched on the vostok 6 mission june 16, 1963. valentina tereshkova was the first woman to go into space. in 1963, she spent almost three days in space and orbited earth 48 times in her space capsule, vostok 6.jan 22, 2018

a system of cooperative federalism emerged, as the powers of the federal government expanded.