1) The New England Patriots and the Pittsburgh Steelers hold the record for the most Super Bowl wins, with six championships each.

2) The first computer mouse was invented by Douglas Engelbart in 1964 and consisted of a wooden shell and two metal wheels.

3) The tongue of a blue whale is so big that about 50 people could stand on it.

4) The construction of the Great Wall of China began in the 7th century BC and was completed over several centuries, spanning thousands of miles.