The minimum number of votes in the Electoral College from any state regardless of its population for the U.S. Presidential elections.
The number of votes in the Electoral College from the District of Columbia for the U.S. Presidential elections set by the amendment 23 of the U.S. Constitution ratified in March 1961.
The number of counties in the state of Delaware: Kent, New Castle and Sussex; the least among 48 states which are administratively divided into counties. Alaska does not divided into counties. Louisiana is divided into 64 parishes. The most is the number of counties in the state of Texas: 254. (The second most is of Georgia: 159).
The number of branches in the U.S. government: Legislative (Congress), Executive (President) and Judicial branch (Supreme Court).
The number of the U.S. Presidents who died on the 4th of July: Thomas Jefferson, John Adams and James Monroe. (The only U.S. President was born on 4 July is Calvin Coolidge.)
New Jersey was the 3rd state to ratify the U.S. Constitution to join the Union, on 18 December 1787.
The number of Vice Presidents (the most) served under the 32nd U.S. President, Franklin Delano Roosevelt over his terms (1933-1945): John N. Garner, Henry A. Wallace and Harry S. Truman.
March is the U.S. National Women’s History month.
March is the American Red Cross month.
The Seventh Generation theory is used by some American Native tribes to look to the three generations preceding them for wisdom and the three generations ahead for their legacy.
The number of the U.S. Presidents receiving Nobel prize in Peace: Theodore Roosevelt (1906, mediating the end of Russo-Japanese War), Woodrow Wilson (1919, promoting of the League of Nations, the precursor to the United Nations) and James Earl Carter, Jr. (2002, for peaceful solutions to international conflicts and promoting democracy, human rights and economic and social development). (Former Vice President Al Gore received the Nobel prize in Peace in 2007 for his effort in Global Warming issues).
3 & 4
The 3rd U.S. President: Thomas Jefferson (Republican, Virginia, 1801-1809).
His Vice Presidents were: Aaron Burr, Jr. (New York, 1801-1805), the 3rd U.S. Vice President and George Clinton (New York, 1805-1809), the 4th U.S. Vice President.