Big Stick policy, in American history, policy popularized and named by Theodore Roosevelt that asserted U.S. domination when such dominance was considered the moral imperative.
Roosevelt used this phrase to explain his relations with domestic political leaders and his approach to such issues as the regulation of monopolies and the demands of trade unions.
Approximately 180 million years
All continents were united in one super continent known as Pangaea. according to Wegener, an observation into the shape and designs of the continents reveals that all the continents were once one large mass. the continent begun to split approximately 180,000 million years ago.
Freed slaves or the enslaved negroes/black farmers migrated to western territories because the west was new and the United States Agrarian Reform had promised them a free land which is forty (40) acres and a mule under the Homestead Act of 1862.
Science allowed us to analyze what had been working, and further allowed the establishment of new technology