October 4, 1931
Dick Tracy first appears published only in the Detroit Sunday Mirror, with Cigarette Sadie in companion
October 12, 1931
Dick Tracy in daily continuity first appears published in the NY Daily News
September 18, 1932
Dick Tracy meets Junior
December 1932
Whitman Publishing launches their first Big Little Book—The Adventures of Dick Tracy Detective
June 4, 1933
Last appearance of Cigarette Sadie companion strip
1933
Cupples & Leon release Dick Tracy and Dick Tracy, Jr. and How They Captured "Stooge" Viller, the strip's first book reprint
Late spring - 1934
Dick Tracy radio program debuts on Boston's WBZ-WBZA
september 1935
Mutual Broadcasting picks up radio Dick Tracy
February 1936
Dell Publishing launches its Popular Comics imprint—the first comic book to reprint Dick Tracy—continuing through 9/1948
February 1937
Republic Pictures debuts Dick Tracy, their first screen serialization of the strip starring Ralph Byrd as lead
1937-1939
Radio Dick Tracy is broadcast on NBC
May 1938
Dick Tracy debuts in Dell Publishing's Super Comics imprint, continuing through 12/1947
August 1938
Republic Pictures releases Dick Tracy Returns
September 1939
Republic Pictures releases Dick Tracy's G-Men
December 1941
Republic Pictures releases Dick Tracy vs. Crime Inc.
1943-1948
Radio Dick Tracy resumes broadcast on NBC Blue, bought by ABC in 1945
February 15,1945
Armed Forces Radio Service presents their Command Performance, Dick Tracy in b Flat
december 1945
RKO Pictures releases Dick Tracy—the strip's first “B” movie treatment—starring Morgan Conway as lead
August 18, 1946
Gravel Gertie marries B.O. Plenty
december 1946
RKO Pictures releases Dick Tracy vs. Cueball, starring Morgan Conway as lead
march 30, 1947
Sparkle Plenty is born to Gravel and B.O.
may 1947
RKO Pictures releases Dick Tracy's Dilemma, starring Ralph Byrd as lead
September 1947
RKO Pictures releases Dick Tracy Meets Gruesome, starring Ralph Byrd as lead
january 1948
Dell Publishing launches Dick Tracy as a standalone comic book title, continuing through 12/1949
october 1948
Chief Brandon resigns his post; Tracy's partner Pat Patton becomes Chief of Police
december 26, 1948
Chief Patton introduces Sam Catchem to Tracy; Sam becomes his new partner
September 11, 1949
The strip's Crimestoppers Textbook feature debuts, chronicled by Chicago PD detective, Al Valanis
december 25, 1949
Dick Tracy marries Tess Trueheart
March 1950
Harvey Publications takes over Dell's Dick Tracy title, continuing through 4/1961
september 1950
Dick Tracy television program debuts, starring Ralph Byrd as lead
may 4, 1951
Bonnie Braids is born
january 1955
Policewoman Lizz joins the Police Department's staff
december 2, 1956
The Gravies debuts in companion to Dick Tracy in the Chicago Sunday Tribune, appearing frequently until 1/26/1964
june 1961
United Productions of America begins television syndication of The Dick Tracy Show, an animated cartoon series
september 2, 1962
The Magnetic Space Coupe first appears
october 4, 1964
Junior marries Moon Maid
september 12, 1965
Honey Moon is born to Moon Maid and Junior
january 16, 1966
First appearance of “The Nation That Controls Magnetism Will Control The Universe” slogan
october 1966
William Dozier shoots the pilot episode of a live-action Dick Tracy with 20th Century-Fox for NBC-TV, the show isn't picked up
july 5, 1969
Sparkle marries cartoonist Vera Alldid
june 1970
Wiliam Johnston's Dick Tracy—the first novelization of the character—is released
july 10, 1970
Groovy Grove joins the Police Department's staff
1970
Chelsea House publishes the strip's first reprint compilation, The Celebrated Cases of Dick Tracy
december 1975
DC/National Periodical Publications features Dick Tracy in their Limited Collectors' Edition series, reprinting the Flattop case
december 25, 1977
Chester Gould's final Dick Tracy strip appears, culminating 46 years, 2 months and 21 days of daily production