1972
ID: 421
Richard Karp shows 21 problems are NP-complete, including many graph problems (clique, coloring, Hamiltonian cycle)
ID: 421
1972
ID: 1893
Canada completes sterilization program - 2,822 people sterilized in Alberta alone
ID: 1893
1972
ID: 1894
Virginia Douglas's paper argues attention deficits more significant than hyperactivity - paradigm shift
ID: 1894
1972
ID: 1895
BCCI founded; CDC sold advanced computer to Soviet Union
ID: 1895
1972
ID: 1896
Martial law declared in Philippines - Central bank under Marcos control; mysterious gold transactions begin
ID: 1896
1972
ID: 1897
Phoenix operations 'officially' end (certain aspects continue until fall of Saigon 1975)
ID: 1897
1972
ID: 1900
Saul Alinsky dies
ID: 1900
1972
ID: 1901
Vladimir Rusak attends Zagorsk Theological Academy - KGB controls all seminary students (1972-1977)
ID: 1901
1972
ID: 1902
DDT is banned in the United States due to environmental concerns
ID: 1902
1972
ID: 1903
Yugoslavia smallpox epidemic: 175 cases, 35 deaths (index case recently vaccinated)
ID: 1903
1972
ID: 1904
US Senate documents 32 'worthless vaccines' marketed for decades
ID: 1904
1972
ID: 4329
Alan Kay and team at Xerox PARC develop Smalltalk - first pure object-oriented programming language with GUI
ID: 4329
1972
ID: 4424
Dennis Ritchie develops C at Bell Labs - evolution of B, systems programming language for Unix, becomes universal
ID: 4424
1972
ID: 4425
Alain Colmerauer and Robert Kowalski create Prolog - PROgramming in LOGic, declarative language for AI
ID: 4425
1972
ID: 4482
HP-35 released - first pocket scientific calculator, replaces slide rules, $395
ID: 4482
1972
ID: 4618
René Thom publishes catastrophe theory - topology of sudden changes
ID: 4618
1972
ID: 1899
March 1972
Saul Alinsky's Playbook interview: 'I will unreservedly choose to go to hell... I'll start organizing'
ID: 1899
1972
ID: 4382
April 1972
Intel releases 8008 processor - 8-bit CPU with 3,500 transistors, foundation for 8080
ID: 4382
1972
ID: 1898
June 1972
Pope Paul VI states: 'The smoke of Satan has entered the Church'
ID: 1898
1972
ID: 5637
September 21, 1972
President Ferdinand Marcos declares Martial Law in the Philippines, beginning 14 years of dictatorial rule
ID: 5637