An entire suit of field armor (that is, armor for battle) usually weighs between 45 and 55 lbs. (20 to 25 kg), with the helmet weighing between 4 and 8 lbs. (2 to 4 kg)—less than the full equipment of a fireman with oxygen gear, or what most modern soldiers have carried into battle since the nineteenth century.
1,2,3 and i think 5 im not 100% sure but i hop this helps :)
On September 17, 1787, the Constitution was signed. The Constitution is known to be written by James Madison but is usually credited to other people who had similar ideas for the Constitution.