Home > General Knowledge > Important Dates and EventsWhat year was the first Earth Day celebrated?A. 1970 B. 1972 C. 1969 D. 1971Answer: 1970Additional Information: The first Earth Day was celebrated on April 22, 1970. Subjects: Important Dates and Events, General KnowledgeRelated MCQsWhat year was the first DVD released?What year was the first robotic surgery performed?When did India gain independence?When was the first known exoplanet discovered?When did the first international Olympic Games take place?When was the first public telephone installed?When did the first online social network, Six Degrees, launch?What year did the first successful vaccine for smallpox become available?What year did the first person walk on the moon?What year was the first portable MP3 player released?What year did the first Bitcoin transaction occur?When was the first commercial webcam launched?What year was the first successful laparoscopic cholecystectomy performed?What year was the first electronic tablet developed?What year did the first artificial heart get implanted?