Just hours before his assassination, President Abraham Lincoln signed legislation creating which now-famous US government agency?

Which U.S. President broke with tradition by being inaugurated on a book of law rather than a Bible?

Which US President, along with George Washington, is known for being one of the wealthiest presidents in American history?

John Adams and Thomas Jefferson, two former US Presidents, both passed away on what historically significant day?

Thomas Jefferson held a unique view that the U.S. Constitution should ideally be revised or reconsidered approximately every how many years?

To challenge European views of American animals as weak, Thomas Jefferson attempted to send what unusual item to a French count?

Thomas Jefferson created his own version of the Bible, notably omitting which type of events he considered 'contrary to reason'?

Following which major event did the US Secret Service begin destroying presidential limousines after they were retired from service?

Which former U.S. President famously reported seeing a UFO in 1973, describing it as the "darndest thing" he had ever seen?

The White House first officially celebrated the 4th of July in 1801. Which U.S. President was in office at that time?