Did you know the first item sold on eBay was a broken laser pointer, listed by founder Pierre Omidyar in 1995 on his new site, AuctionWeb (now eBay)? (The laser pointer sold for $14.83 to Mark Fraser, who explained he was a collector of broken laser pointers.)

Did you know that while most organs can potentially develop cancer, there is one organ that is generally considered to be immune to cancer: the heart ? (This is because the heart is a highly specialized organ with unique characteristics that make it resistant to cancer development.)

Did you know Bubble Gum was invented in 1928 by Walter Diemer, an accountant at the Fleer Chewing Gum Company in Philadelphia? (Diemer accidentally discovered the super-stretchy formula for the gum, which became known as Dubble Bubble, while experimenting with new gum recipes in his spare time. The gum's characteristic pink color was a result of the only dye Diemer had on hand at the time, and it became a successful and iconic bubble gum.)

Did you know that commercial toilet paper was introduced in the US by Joseph Gayetty in 1857, but the familiar perforated roll wasn't available until the Scott Paper Company popularized it in 1891 when patented by Seth Wheeler and was designed with the "over" position, as shown in his patent ?(However, the use of paper for hygiene dates back much further, with the earliest written record of paper used for this purpose originating in China in 589 A.D.)