1. Jim crow law passed- 1877-1950
2. The supreme Court ruling in Plessy vs Ferguson- 13th april 1896-18th may 1896
3. NAACP founded 12th February 1909
4. The nineteenth amendment ratified- 1920
they required less loading and unloading
explanation:
the shipping container improved shipping because it cut down on unloading time by three weeks, eliminated wasted space, and allowed ships to carry.
the answer is a) the proclamation of 1763.