People didn’t always say “hello” when they answered the phone. When the first regular phone service was established in 1878, Alexander Graham Bell suggested answering the phone with “ahoy.”

When the Declaration of Independence was being drafted, Benjamin Franklin suggested that the word “sacred” be replaced with “self-evident” because he believed that the nation should be founded on reason, not faith.

Having no friends could be as deadly as smoking, a Harvard University study suggested. There’s a link between loneliness and the levels of a blood-clotting protein which can cause heart attacks and stroke.