On August 3, 1492, Christopher Columbus set sail on a voyage that would eventually lead him to the Americas. If on this day Columbus had invested $1 in a 5% simple interest account, determine the amount of interest the account would have earned by the following dates. Use a scientific calculator and disregard leap years in your calculations.

(a) December 11, 1620 (Pilgrims land on Plymouth Rock).

(b) July 4, 1776 (Declaration of Independence).

(c) December 7, 1941 (United States enters World War II).