It depends on what you take to be the beginning and what the end. It lasted two years if you understand it as from the time it was revealed to the time Nixon resigned. It lasted 5 years if you take it from the time Nixon began doing it to the time he resigned.
Answer:
Trading good was apart of the Colombian. Stuff like trading horses, sugar plants, Tabaco but not only goods it also came with disease
Answer:
is that it limits put in place to prevent abusive power.
Explanation: