Don't you know?

Don't you know that carrots were originally purple?

Don't you know that honey never spoils? Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible.

Don't you know that the shortest war in history lasted only 38 minutes? It was between Britain and Zanzibar in 1896.

Don't you know that the smell of freshly cut grass is actually a distress signal? When grass is injured, it releases chemicals that alert nearby plants to the danger.

Don't you know that bananas are berries, but strawberries aren't? In botanical terms, berries are defined as fruits produced from a single ovary, and bananas fit this definition, while strawberries develop from multiple ovaries.

Don't you know that the national animal of Scotland is the unicorn? It has been a symbol of Scotland since the 12th century.

Don't you know that the Eiffel Tower can be 15 cm taller during the summer? This is because the iron expands in the heat.

Don't you know that the word "soccer" originated in England? It comes from the sport's formal name, "association football," which was shortened to "assoc" and later became "soccer" to distinguish it from rugby football.

Don't you know that there are more possible iterations of a game of chess than there are atoms in the known universe? This is known as the Shannon number, named after mathematician Claude Shannon.

Don't you know that octopuses have three hearts? Two pump blood to the gills, while the third pumps it to the rest of the body.