Event:
41 killed in London Underground, as train speeds past final stop
More Notable Events on February 28:
1997 Smokers must prove they are over 18 to purchase cigarettes in US
1995 Denver International Airport opens
1994 Brady Law, imposing a wait-period to buy a hand-gun, went into effect
1935 Nylon discovered by Dr. Wallace H. Carothers
1861 Territories of Nevada and Colorado created
