Event:
Giants clinch their 4th straight pennant, beating Phils 5-1
More Notable Events on September 27:
1990 Tour de France champion Greg LeMond visits White House
1989 Sony purchases Columbia Pictures for $3.4 billion cash
1964 Warren Commission released, finds Lee Harvey Oswald acted alone
1961 Sierre Leone becomes 100th member of U.N.
1916 1st Native American Day celebrated, honoring American Indians
