The EO only gives authority within the executive branch and those federal agencies. The EO doesn't have the legal weight of a law of the land. It can be rescinded by both the president and/or Congress when they provide oversight. A law of the land requires a vote by Congress to be rescinded
EXECUTIVE ORDER or EO are exclusively prerogative of the president that do not need the promulgation of congress. The president can issue EO left and right, without the approval of congress because it is exclusively intended for executive branch of the government and not the legislative body like congress. While a law are passed inside the congress for their deliverance and approval.
World War I marked one of the biggest jumps forward for weapons of death and destruction. Many who came back were affected for the rest of their lives by the mustard gas that they were exposed to in the trenches of France.
The roaring twenties were called this because this was after the US won WWII so everyone was celebrating. The US started prohibition, but people kept on drinking and partying. It got so bad and crazy that this was one for the main reasons for the Great Depression