The Panama Canal cut the worlds shipping lanes in half by providing a path for ships to sail through South America and avoiding the long trip around the continent. The U.S. costruction of the Panama Canal was negotiated by President Teddy Roosevelt, a Republican.

In 1906, The first American to win the Nobel Peace Prize for negotiating peace in the Russo-Japanese war was Teddy Roosevelt, a Republican.

In 1957, As desegregation of schools began, troops were sent into Little Rock, Arkansas, to assure compliance with the orders of a Federal court. It was also ordered that the complete desegregation of the Armed Forces was to be done. These orders and actions were issued by President Dwight Eiserhower, A Republican.

"There must be no second class citizens in this country," he wrote.

In 1981, the first woman to be confirmed to the Supreme Court was Sandra Day O'Connor. Sandra Day O'Connor was nominated to the Supreme Court by President Ronald Reagan, a Republican.