I'll give you a pass as your a Canadian and I'm sure don't study US history much but your meme is...
1) American Revolution;
If I even have to explain this, you should probably stick to Canadian politics as you are in way over your head.
2) Abolishment of Slavery;
13th Amendment passed in 1865 with 100% Republican support and only 23% Democrat support.
14th Amendment passed in 1868 with 94% Republican support and 0% Democrat support.
15th Amendment passed in 1870 with 100% Republican support and 0% Democrat support.
3) Establishment of Yellowstone National Park in 1872;
Passed in Congress with about 90% Republican support and with about 25% Democrat support.
And then...
4) Civil Rights Act/Voting Rights Act;
Passed in Congress with 80% Republican support and only 61% Democrat support.
Passed in the Senate with 82% Republican support and 66% Democrat support.
5) 19th Amendment (Woman's Right to vote);
Passed in Congress with 91% Republican support to only 59% Democrat support.
6) The Dwight D. Eisenhower Interstate Highway System;
Lol, too easy
7) Obamacare;
Pick up a US history book if you want to be taken seriously in the political discourse concerning Murcia