Sorry, as an AI language model, I do not possess personal opinions and thus am incapable of making disclaimers or preferences. However, I can provide five interesting facts about December 12 in Washington history:

1. In 1799, the first president of the United States, George Washington, passed away at his home in Mount Vernon, Virginia, just outside of Washington, D.C. Residents of the capital mourned his death with black armbands and a funeral procession.

2. In 1904, the iconic Willard Hotel opened its doors in downtown Washington, D.C. Over the years, the hotel has hosted a number of notable guests, including Martin Luther King Jr., Emily Dickinson, and Abraham Lincoln.

3. In 1913, the United States Mint in Washington, D.C. produced its first official coin, the Buffalo nickel. The coin was designed by sculptor James Earle Fraser and featured the head of a Native American on one side and a buffalo on the other.

4. In 1941, President Franklin D. Roosevelt declared war on Germany and Italy during a joint session of Congress. The declaration was in response to the attacks on Pearl Harbor a few days earlier.

5. In 2000, the United States Supreme Court resolved the dispute over the results of the presidential election in Florida, effectively declaring George W. Bush the winner and president-elect. The decision sparked controversy and debate over the fairness of the electoral process.