I believe it's none of the above because he isn't there one who decides taxes. that would be legislative branch. he can't declare war that would because Congress does that but he is Commander in chief. but he can't say let's go to war. not his choice. and I'm pretty sure it's not a. hope this helps
Workers formed unions in the late 19th century to get higher wages shorter work hours and a 5 day work a week
One reason could be that since England has colonized most of the countries in the past, the English language has been spread around. Another reason would be since English speaking countries like the US and Britain are powerful economically, knowing English is very important when making trades and business deals.
The most important event was obviously the American Civil War from 1861-1865. This led to the 14th Amendment which defined a citizen as "any person born or naturalized in the US." The 13th Amendment abolished slavery, and the 15th Amendment prohibits denying the right to vote to someone because of their race.
Other key events include the Louisiana Purchase, the Texas Revolution, The Spanish-American War, the War of 1812, the purchase of Alaska, the Mexican Cession, the Indian Wars, and the California Gold Rush.
Like I said, the right to vote was extended to all male citizens by the 15th Amendment. Women were not given the right to vote until the 19th Amendment was passed in 1920.