1) The world's longest traffic jam occurred in China in 2010 and lasted for 12 days, stretching over 60 miles (97 km).

2) The Black Lives Matter movement, which gained prominence in 2013, advocates for racial justice and equality, addressing systemic racism and police violence against Black individuals.

3) The world's first paper money was created in China over 1,000 years ago.

4) The Federal Reserve System, often referred to as the Fed, is the central banking system of the United States.