In the United States? Democratic and republican, The Republican Party is right wing, and the Democratic Party is left wing... they differ on gun control, taxes, gay marriage, abortion and a lot of social issues along with economic ones
Most immigrants came from Ireland due to the potato famine.
Explanation:
One of the most devastating things to happen to Ireland was the potato famine where millions of people died of starvation in a famine tat was largely avoidable but the British did not do anything about it.
A huge stretch of the population thus decided to move away from the nation to settle for better prospects and the majority chose US.
The US thus became swarmed with migrants from Ireland on its shore that wanted sanctuary.
Actually, all of those answers were part of treaty agreements between the United States and Great Britain in 1817-1818.
The one that seems odd in the list is "Oregon Country disputed," because that was a matter not settled at that time. In the Treaty of 1818, the two sides agreed to some joint occupancy of the Oregon Country for ten years. Actual resolution of disputes over joint occupancy didn't come until the Oregon Treaty of 1846.
Booming. Veterans returning home were buying houses with their GI bills for their family and kids, born in “The Baby Boom”.