The "boom" years of the 1920's were characterized by a growth in the use of Automobiles.
While looking at the history of the United States, the 'boom years' of the early 1920s were marked by a huge change in the way people traveled.
Personal transportation was shifting from horse-driven carriages to Automobiles, recently mass-produced by Ford.
At the time, the automobiles were a clear sign of growing economic might of the United States and the optimism of the early 1920s.
Chinese products were vital to the afro Eurasian trade network
There was the Yankee–Pennamite Wars that happened in this time period. But because the question is broad, technically asking for any event between the dates of January 9th 1788 through May 29th 1790, so I don't think anyone can say for sure.
The Meiji Period in Japan is generally believed to last from 1868 to 1912 and was named after the emperor Meiji.
The era saw the Meiji Restoration take place, also known as Meiji Revolution, or Reform.
This saw the first formal consolidation of power in Japan and the development of a modern administration and standing army.
The Meiji Restoration saw a period of Japanese advancements in the fields of education, agriculture and technology. The Japanese understood that they were far behind Western Powers and would need to replicate their success in order to avoid being dominated by them.
Japan transformed from a mostly agrarian society into a modern country with skilled engineers and scientists.
This also greatly contributed towards the development of a capable Army.
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