Grand Slam is a general sports term applied when achieving something special.
Most common uses:
In tennis, winning the Grand Slam is winning the following four tournaments in the same year: Australian Open, French Open, Wimbledon, US Open. Those tournaments are therefore also known as the Grand Slam tournaments.
... who first rounded the Cape of Good Hope.
Sir Francis Drake, (c. 1540-1596), pirate, leader of the second circumnavigation
Jules Dumont d'Urville, (1790-1842), explorer of ...