I believe it is Alexander Hamilton who defined the behavior of the U.S. Presidency. This is just a guess. Hope you get it right.
World war 1 began on 28 July 1914 and ended on 11 November 1918, so the years when WW1 lasted were 1914, 1915, 1916, 1917, 1918 it lasted exactly 4 years 3 months and 2 weeks :)
Answer: Became more millenial and radical
Family law deals with family legal issues