1716: Boston Light, the first lighthouse in the New World, starts guiding ships into Boston Harbor.

As early as the late 17th century, settlers in the Massachusetts Bay Colony guided ships into Boston Harbor

Photo: Tim Morris

Petrolatum
Folk remedies for hemorrhoids include the application of clarified butter or glycerin soap to the affected area. Instead of one of those, Preparation H uses petroleum jelly as a protectant, a mixer, and a delivery medium for the