1931, The DuPont company, of Wilmington, Delaware, announced the first synthetic rubber.
1936, the world's first high-definition television service began by the BBC from studios and transmitters at Alexandra Palace, in north London.
1947, Howard Hughes piloted his huge wooden airplane, known as the Spruce Goose on its only flight, which lasted about a minute over Long Beach Harbor in California.
1950, concentrated milk was first test-marketed in the U.S. in Wilmington, Delaware.
1955, American investigators Carlton Schwerdt and F.L. Schaffer crystallized the polio virus.
1957, the first titanium mill was opened in Toronto, Ohio by the Titanium Metals Corp. of America (TIMET).
1977, the identification of methanogens, a form of life dating back some 3.5 billion years, was reported by scientists at the University and Illinois.
Need to check this point. A printed paper shows May as the month
1988, a computer "worm" unleashed by a Cornell University graduate student, Robert T. Morris, began replicating wildly, clogging thousands of computers around the country.
2000, an American astronaut and two Russian cosmonauts became the first permanent residents of the international space station, at the start of their four-month mission.
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