1900s in technology1910s in technology1920s in technology1930s in technology1940s in technology1950s in technology1960s in technology1970s in technology1980s in technology1990s in technology2000 in technology20th-century engineers20th century in computer science20th century in roboticsMobile phones introduced in the 20th centuryScience and technology during World War IScience and technology during World War IIScience and technology in YugoslaviaScience and technology in the Soviet UnionTelegraphyVehicles introduced in the 20th century
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Wikipage page ID
42,578,377
Wikipage revision ID
605,692,817
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20th century in technology
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20th century in technology
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