Queen Elizabeth II is the longest-reigning living monarch in the world. She's got 65 years under her belt. That also makes her the longest-reigning monarch in British history.
To give you some perspective, that means her reign has encompassed 13 presidents, 34 Olympic games and the rise and fall of the Berlin Wall.
Her reign also predates McDonald's (1955), Barbie (1959), "Doctor Who" (1963) and the internet.
That's a lot of material to cover in "The Crown."
