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 sport of golf originated in Scotland and is played on courses with 18 holes, each with a designated par score.

3) The first sound film, "The Jazz Singer," was released in 1927 and marked the transition from silent movies to "talkies."

4) The political system of the People's Republic of China is based on the Communist Party's leadership, with the General Secretary holding significant authority and influence over the country's policies and governance.