RGUv GM

"If a problem takes an hour-and-a-half to solve and write up, I'd call it easy," one student told The Harvard Independent. By comparison, that's about as long as the average Disney animated movie

A roommate of two 55ers explained to the Harvard Independent that, "on one particularly stressful problem-solving night, he got more sleep than the two of them combined—and he only got six hours total!

Professor Yum-Tong Siu, whose class began with 50 students in 2003, said he actively tried to whittle down the class size. As The Harvard Independent reports, the class dropped down to 25 students, but Siu added: "I want to reduce it a bit more." The goal: 20. "We want a group of students with similar backgrounds so we can proceed at a pace that can suit them at the same time, so they don't feel bored or over their heads," said Siu.

Many more men enroll in the Math 55 courses than women. According to a report in the Harvard Crimson, just 17 women took the course between 1990 and 2006. In 2015, no women completed Math 55a

According to the freshman guide, Math 55 "often contains former members of the International Math Olympiad teams." That's the worldwide championship competition in which high school math students from more than 100 countries go head-to-head on ridiculously tough math problems.

During that fateful summer in 1997, Diana decided to take William and Harry with her aboard Mohamed Al-Fayed's yacht, the Jonikal. The boys had plenty of expensive toys on the trip, like high powered Jet Skis, and Dodi Fayed tried everything he could do to win them over—even renting out a disco for them. But friends told me William did not like his mother's growing friendship with the Fayeds.

When the princess was stripped of her "Her Royal Highness" title when her divorce became final in 1996, William consoled his mother by telling her he would restore her royal title when he became king. And for more on the current royal matriarch, here are 13 Secrets About Queen Elizabeth Only Royal Insiders Know.

Princess Diana had kept her explosive tell-all interview with Martin Bashir for the BBC1 program Panorama in 1995 a secret from everyone, including her sons. An hour after the broadcast aired, she called William, who was away at school, to talk to him and he refused to speak to her. Several accounts have reported he was angry at her for discussing her affair with his former riding instructor, James Hewitt, and he allegedly felt her remarks about Charles cast doubt on his ability to carry out his duty as king.

Diana had always confided in William, even though he was just a child, particularly while her marriage to Prince Charles was unraveling. But she began to worry it had taken too much of a toll on her son. In 1992, she confided to a friend she "was worried about William" because "he's too sensitive; he feels everything too much," according to royal biographer Christopher Andersen.

When he was a teenager, Prince William had a huge crush on supermodel Cindy Crawford. In the documentary Diana Our Mother: Her Life and Legacy, William recounted the day in the early 1990s when his mother surprised him by arranging for Crawford, Christy Turlington, and Naomi Campbell to be waiting for him at the top of the stairs when he returned home from school. The prince recalled, "I went bright red and didn't know quite what to say. And sort of fumbled and I think pretty much fell down the stairs on the way up."

William is part of the 10 percent of the world's population with a dominant left hand. This posed a problem for the polo-loving prince when he took up the sport. The rules of the game only permit the use of the right hand. According to Nicholas Colquhoun-Denvers, the president of the World Polo Governing Body, William's dogged determination helped him master playing with his right hand, which he continues to do to this day. And for more on how William and his family stay in shape,

William has something in common with the beloved Hogwarts student—and it's not his Quidditch skills. In 1991, the prince was hit in the forehead with a golf club by a classmate. The accident left him with a lighting bolt-shaped scar, just like Harry Potter's!

In 1985, when Charles and Diana were set to travel to New Zealand and Australia for their first tour after becoming parents, the princess was insistent that nine-month-old William travel on the same plane as they did. This was a huge break in royal protocol, which, up until that point, dictated that the two successive heirs to the throne travel separately in the event of a fatal accident. But Diana got what she wanted

When he was a preschool student at Mrs. Mynors' Nursery School in London in the mid 1980s, little Wills quickly became known as "The Basher" for his bullying ways of pushing to the front of the line and getting into playground fights. Diana and Charles were horrified, but the other parents dared not say anything for fear of insulting the future king. And for some of Prince William's father's less-than-favorable moments, here are Prince Charles' Most Controversial Moments That You've Forgotten About

Prince Charles and Princess Diana clashed over what to name their firstborn son. Charles favored Albert (after Queen Victoria's husband) while Diana wanted Sebastian or Oliver. In the end, they compromised with William Arthur Philip Louis Windsor.

William was known as "Baby Wales" for a week before his given name was announced to the world—just like his nephew Archie Harrison Mountbatten-Windsor was known as "Baby Sussex" for days after his birth before his name was revealed. And for more about the Prince of Wales, c

RGUv GM updated their phone number.

RGUv GM updated their business hours.

RGUv GM updated their website address.