1) Michael Phelps, an American swimmer, has won a total of 28 Olympic medals, including 23 gold medals, making him the most decorated Olympian of all time.

2) The concept of gravity was famously described by Sir Isaac Newton after an apple fell on his head.

3) Matcha, a finely ground powder made from specially grown and processed green tea leaves, is a cherished part of Japanese tea culture. It has a vibrant green color and is known for its earthy and umami flavors. Matcha is prepared by whisking the powder with hot water and is traditionally enjoyed in tea ceremonies. It is also used as a versatile ingredient in desserts, beverages, and even savory dishes, offering a unique and distinctive taste.

4) The world's oldest living plant is believed to be a clonal shrub called "Old Tjikko" in Sweden, estimated to be over 9,500 years old.