<Ul> <Li> Four consecutive major titles from the 1949 French Championships to 1950 Australian Championships (three times with Margaret Osborne duPont and the 1950 Australian Championships won with Doris Hart) </Li> </Ul> <Li> Four consecutive major titles from the 1949 French Championships to 1950 Australian Championships (three times with Margaret Osborne duPont and the 1950 Australian Championships won with Doris Hart) </Li> <Li> Pam Shriver and Martina Navratilova (1986--87) <Ul> <Li> Four consecutive major titles from 1986 Wimbledon to the 1987 French Open </Li> <Li> Navratilova also won the 1986 French Open with Andrea Temesvári, totaling 5 consecutive major titles for her </Li> </Ul> </Li> <Ul> <Li> Four consecutive major titles from 1986 Wimbledon to the 1987 French Open </Li> <Li> Navratilova also won the 1986 French Open with Andrea Temesvári, totaling 5 consecutive major titles for her </Li> </Ul>

Who is the only person to achieve a golden slam in one calendar year