1) The blue whale is the largest animal to have ever existed, with an average length of about 82 feet (25 meters).

2) In Hindu mythology, the Bhagavad Gita is a sacred text that contains a conversation between Prince Arjuna and the god Krishna, who serves as his charioteer. It delves into philosophical and moral dilemmas and provides guidance on duty, righteousness, and the path to spiritual enlightenment.

3) The first video game console, the Magnavox Odyssey, was released in 1972 and featured games such as Pong and Table Tennis.

4) The Tour de France, first held in 1903, is one of the most prestigious and grueling cycling races, covering over 3,500 kilometers (2,200 miles) in three weeks.