Did you know the name Washington was to honor the first president of the USA, George Washington?  The name Columbia is in reference to Christopher Columbus?

That the official motto is “Justia Omnibus” - Justice for All?

That in 1790, a survey of the land for the District of Columbia was undertaken by Andrew Ellicott with the help of Benjamin Banneker? Banneker was a free black from Maryland who was a self-taught mathematician and astronomer. Forty boundary stones, laid at one-mile intervals, established the boundaries based on Banneker's celestial calculations.

That of the adults 25 and older in DC, 42% have at least a bachelor's degree?  Washington, DC, is second only to the Silicon Valley, CA region in educational attainment.

That the official flower of the District of Columbia is the American Beauty Rose?

That the most popular museum in DC, and on the planet, is the National Air and Space Museum, which has had 219 million visitors in its first 25 years?

That the Residence Bill of July 16, 1790 established a site along the Potomac to be the capital? This federal district was first called the Territory of Columbia and the federal city the City of Washington. The name changed to the District of Columbia in 1793.