The first European to find an ocean trading route to India. He accomplished what many explorers before him could not do. His discovery of this sea route helped the Portuguese establish a long-lasting colonial empire in Asia and Africa.
I’m not 100% sure, but I believe it’s Transportation Revolution.
The gradual retreat of the Aral Sea shoreline and the drying up of the Syr Darya's deltaic region exposed toxic fertilizer and salt residues to the winds, devastating local plant and animal life and causing serious health problems among the human population.
Federal Government because they were the ones who had most of the problems with the AOC