1) Chocolate chip cookies, a beloved sweet treat, were invented by Ruth Graves Wakefield in the 1930s. Wakefield ran the Toll House Inn in Massachusetts and added chopped chocolate to her cookie dough, expecting it to melt and create an all-chocolate cookie. Instead, the chocolate bits retained their shape, giving birth to the classic chocolate chip cookie. Today, they are a staple in cookie jars, dessert menus, and homemade baking, enjoyed by people of all ages.

2) The fastest recorded serve in tennis was achieved by Sam Groth at 163.7 miles per hour (263.4 kilometers per hour) during a tournament in 2012.

3) The Pacific Ocean is the largest ocean on Earth, covering more than 30% of the planet's surface.

4) The first successful mass-produced personal computer, the IBM PC, was introduced in 1981 and played a significant role in popularizing the use of computers in homes and offices.