1) Brad Pitt is an American actor and film producer. He has starred in a wide range of films, including "Fight Club," "Inglourious Basterds," and "Once Upon a Time in Hollywood," and has received critical acclaim and numerous awards for his performances.

2) The invention of the transistor by Bell Laboratories in 1947 revolutionized electronics and paved the way for the development of smaller, more efficient electronic devices.

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

4) The NBA (National Basketball Association) is widely regarded as one of the most popular and competitive professional basketball leagues in the world.