The Palmer Raids were the ones deported over 500 suspected anarchists and leftists in the 1920s
Well, the Battle of Midway changed our entire strategy going forward, as afterward, the US was able to push in with massive victories. one reason for this, was we sunk 4 Japanese Carriers which took a very long time to make. Ultimately, it was the turning point to us winning in the Pacific massively rather than minor, or hard-fought victories.
A new concept that became popular with department stores was using credit cards, and buying on credit: it allowed the users t posses good they cannot afford and on the other hand gave more revenue to the shops and they could charge interest.