Arlington Park is a horse racetrack in the Chicago suburb of Arlington Heights, Illinois. It officially opened in 1927 to 20,000 spectators. In terms of horse racetracks Arlington has been considered a technology leader. It introduced the first all-electric totalisator in 1933 as well as Chicago's first photo finish camera in 1936. Other technology advancements included installing the first electric starting gate in 1940 and the largest closed circuit TV system in all of sports in 1967. Chicago, Illinois — officially the City of Chicago and colloquially known as Chicago, the Second City and the Windy City — is the third largest city of the United States after New York City and Los Angeles and is the largest inland city of the nation. ... Arlington Heights is a village located in Cook County, Illinois and a northwestern suburb of Chicago. ... 1927 was a common year starting on Saturday (link will take you to calendar). ... A totalisator or totalizator (tote board in common parlance) is the name for the computerised system which runs parimutuel betting, calculating payoff odds, displaying them, and producing tickets based on incoming bets. ... 1933 was a common year starting on Sunday (link will take you to calendar). ... 1936 was a leap year starting on Wednesday (link will take you to calendar). ... 1940 was a leap year starting on Monday (link will take you to calendar). ... 1967 was a common year starting on Sunday of the Gregorian calendar. ...
In 1971 Arlington introduced the concept of Trifecta wagering. 1971 is a common year starting on Friday (click for link to calendar). ... In horse-racing terminology, a trifecta is a bet in which the bettor must predict which horses will finish first, second, and third in exact order. ...
Arlington Park was also the site of the first horse race with a million-dollar purse in 1981. The United States dollar, or American dollar, is the official currency of the United States. ... 1981 is a common year starting on Thursday of the Gregorian calendar. ...
The original grandstand was destroyed in a fire on July 31, 1985. A new grandstand was built on the grounds and opened on June 28, 1989. July 31 is the 212th day (213th in leap years) of the year in the Gregorian Calendar, with 153 days remaining, as the final day of July. ... 1985 is a common year starting on Tuesday of the Gregorian calendar. ... (Some entries on this page have been duplicated on August 1. ... 1989 is a common year starting on Sunday of the Gregorian calendar. ...
The high-level intelligence produced by Bletchley Park, codenamed Ultra, is frequently credited with aiding the Allied war effort and shortening the war, although Ultra's effect on the actual outcome of WWII is debated.
The lands of the Bletchley Park estate were formerly part of the Manor of Eaton, included in the Domesday Book in 1086.
Bletchley Park is mainly remembered for breaking messages encyphered on the German Enigma cypher machine, but its greatest cryptographic achievement may have been the breaking of the German "Fish" High Command teleprinter cyphers.
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