The Marine Corpse Men monument was made because of six marine soldiets planted the American on a mountain on the island of Isu Chima. During their time there they tried to put a huge flag on top of the mountain to claim the island. 
The Lincoln memorial was made for Lincoln after he died. It was in honor of his triumphs and peaceful behavior; it was also because he was the president of the United States and he ended slavery. In addition one of Lincoln’s hands is clenched meaning that he is stressed about the civil war that was occurring, and his other hand was relaxed meaning the civil war is over and slavery was abolished. One controversy in this situation is that the people of Chicago didn’t want Lincoln Barrie’s I’m in a swamp, but he ended up being buried in it anyways. 
The third memorial was the Korean War monument, this was made because of the 54,000 people that went to fight a war in Korea. The reason for this was because North Korea was invading South Korea and trying to spread communism. One controversy in this was that the creaters wanted to create 38 statues because the battle was on the 38th parallel, but the people said that that was to many so they reduced the amount of statues to 19; with the statues comes their shadows so if you as the amount of shadows to the amount of statues you get 38. 
The last monument we visited was the Martin Luther King memorial, this was created after his death. This was because he was such an influential person that helped eliminate slavery.
Adrian's cool blog 