Answer:
By 1880, the transcontinental railroad was transporting $50 million worth of freight each year. In addition to transporting western food crops and raw materials to East Coast markets and manufactured goods from East Coast cities to the West Coast, the railroad also facilitated international trade
Affirmative action was aimed at ending discrimination of minorities in various areas of society. This was accomplished through the creation of quotas for minority admissions or hiring. In turn, it was intended to give minorities opportunities in education and work as a way of ending discrimination
The answer is navigation, date and time
The Minoan civilization developed Mediterranean Polyculture, that is the practice of growing more than one crop at the time, which resulted in a healthier diet for the population, and a population growth. Additionally, it preserved the fertility of the soil, unlike when only one crop is growing. This was not yet at standard- the Minoan civilization developed between 2000 and 1000 BC.
With a healthy population, the Minoans could also engage in trade with other places, such as with mainland Greece, which especially valued its pottery.