What is a 2,000th anniversary called?

A 2000 magazine cover showed Caroline Kennedy with the line "Profile in" what? In which 2000 film does Martin Lawrence disguise himself as a large Southern grandmother? Stacy Schiff won a 2000 Pulitzer for "Véra", a biography of the wife of which "Lolita" author? A 2000 tribute to Charles Schulz was titled "Good" what, "Charlie Brown"? A 2001 commemorative silver dollar showed which animal, based on a nickel made from 1913 to 1938? The 2001 crime comedy "Scotland, PA" is based on which Shakespeare play? A 2001 experiment found that, like great apes, which aquatic mammals recognize themselves in mirrors? A 2001 government report warned of a shortage of which health care workers, many of them nearing retirement age?