1	4 tie	U.S. drops atomic bomb	1945
2	3	Japan bombs Pearl Harbor	1941
3	4 tie	Men first walk on the moon	1969
4	2	Wrights fly first airplane	1903
5	6	President JFK assassinated	1963
6	1	Antibiotic penicillin discovered	1928
7	7	U.S. stock market crashes	1929
8	15	Einstein conceives relativity	1905
9	18	World War I begins	1914
10	11	DNA's structure discovered	1953
11	8	New polio vaccine works	1953
12	41	Soviet Union dissolves	1991
13	17	Berlin Wall falls	1989
14	14	Ford creates assembly line	1913
15	9 tie	U.S. women win the vote	1920
16	9 tie	Nazi Holocaust exposed	1945
17	22	First computer chip patented	1959
18	40	Allies invade France on D-Day	1944
19	21	Lindbergh flies Atlantic alone	1927
20	12	'Unsinkable' Titanic sinks	1912
21	53	Scientists invent transistor	1948
22	23	World Wide Web invented	1989
23	57	Communists take over Russia	1917
24	55 tie	Germany invades Poland	1939
25	24	U.S. celebrates V-E Day	1945
26	13	Deadly AIDS disease identified	1981
27	16	Radio signal spans Atlantic	1901
28	28	ENIAC accelerates computing	1946
29	44	President Nixon resigns	1974
30	65	Soviets launch first satellite	1957
31	27	Plastic revolutionizes products	1909
32	25	Official U.S. debut of TV	1939
33	32	President Clinton impeached	1998
34	37	U.S. enters World War I	1917
35	43	FDR's New Deal begins	1933
36	39	Panama Canal opens	1914
37	72	U.S. tests atomic bomb	1945
38	26	Court ends 'separate but equal'	1954
39	30	M.L. King Jr. assassinated	1968
40	36	King delivers 'Dream' speech	1963
41	19	Roe vs. Wade legalizes abortion	1973
42	33	U.S. radio broadcasts begin	1909
43	68	Hitler named chancellor	1933
44	55	Scientists clone sheep	1997
45	29	Congress OKs Civil Rights Act	1964
46	35	Shuttle Challenger explodes	1986
47	51	Gagarin first man in space	1961
48	38	World's nations form U.N.	1945
49	78	World crisis over Cuba missiles	1962
50	47	Israel achieves statehood	1948
51	50	U.S.-licensed TV begins	1941
52	42	World War I ends	1918
53	20	Birth control pill OK'd by FDA	1960
54	52	Flu epidemic kills 20 million	1918
55	70	Secret project to make A-bomb	1942
56	59	Robinson integrates baseball	1947
57	34	Shepard first American in space	1961
58	54	Gates, Allen start Microsoft	1975
59	61	Quantum mechanics proposed	1900
60	67	Interstate highways approved	1956
61	66	GI Bill of Rights strengthened	1945
62	48	Glenn first American in orbit	1962
63	64	U.S. escalates Vietnam War	1965
64 tie	63	Gandhi starts nonviolent reform	1920
64 tie	31	'Silent Spring' warns of eco-danger	1962
66	79	Apple II first mass-market PC	1977
67	47	Robert F. Kennedy slain	1968
68	81	Scopes: evolution vs creation	1925
69	87	Marshall Plan unveiled	1947
70	91	Churchill leads Great Britain	1940
71	58	Quake, fire devastate S.F.	1906
72	49	U.S. troops leave Vietnam	1973
73	55 tie	First 'test-tube baby' born	1978
74	74	First jet plane takes off	1939
75	73	Beatles tour U.S.A.	1964
76	84	Babe Ruth hits 60 home runs	1927
77	86	Chernobyl nuke plant explodes	1986
78	85	Mao starts communist China	1949
79	60	Apartheid ends in South Africa	1993
80	77	Pathfinder sends Mars photos	1997
81	97	U.S. defends South Korea	1950
82	83	Berlin Wall goes up	1961
83	69	Alabama bus boycott begins	1955
84	76	FDR defeats President Hoover	1932
85	80	NATO established	1949
86	96	Airlift saves West Berlin	1948
87	75	Hitler launches 'Kristallnacht'	1938
88	82	Watergate engulfs Nixon	1973
89	90	Gorbachev begins 'glasnost'	1985
90	89	Freud interprets dreams	1900
91	95	Standard Oil trust busted	1911
92	92 tie	U.S. rejects League of Nations	1920
93	92 tie	Soviet famine to kill 25 million	1928
94	71	U.S. warns of smoking hazards	1964
95	94	China's famine to kill 20 million	1958
96 tie	88	Congress passes voting act	1965
96 tie	97	Riots at Democratic convention	1968
98	100	Gulf of Tonkin Resolution OK'd	1964
99	98	North Vietnam takes Saigon	1975
100	62	Friedan sparks women's rights	1963
BACK TO TOP