The new royal baby may be less than a few hours old, but he has already made history. The latest addition to the family of Prince William and Catherine, Duchess of Cambridge, who was born Monday just hours after Kate Middleton was admitted to the Lindo Wing at St. Mary’s Hospital, is the first newborn in the immediate Royal Family to be affected by changes to the line in succession. The Succession to the Crown Act, which was introduced in 2013 but only went into effect in 2015, amended the rules surrounding succession to the British throne so it is no longer dependent on gender.