1) The world's largest diamond, the Cullinan, was discovered in South Africa in 1905 and weighed over 3,000 carats.

2) The International Cricket Council (ICC) is the governing body for the sport of cricket and oversees international tournaments and rankings.

3) The sunflower is not a single flower but a cluster of small flowers arranged in a spiral pattern.

4) The Great Lakes, consisting of Lake Superior, Lake Michigan, Lake Huron, Lake Erie, and Lake Ontario, form the largest group of freshwater lakes on Earth by total area. They are shared by the United States and Canada and are of significant ecological and economic importance.