761Which was the first artificial (synthetic) chemical element ever created in a laboratory, in 1937?
762Which ancient Babylonian king is credited with one of the world’s earliest written legal codes, dating to around 1754 BC?
763Which ancient civilization is generally credited with inventing the wheel?
764Which country is credited with the earliest development and use of gunpowder?
765Which power plant, opened in the Soviet Union in 1954, is regarded as the world’s first nuclear power plant to generate electricity for a grid?
766Who led the first expedition to successfully navigate the Northwest Passage by sea, completed in 1906?
767Which national team completed the first successful ascent of K2, the world’s second-highest mountain, in 1954?
768Which country was the first to successfully develop and detonate a hydrogen (thermonuclear) bomb, in 1952?
769Which spacecraft became the first to successfully orbit another planet, entering orbit around Mars in 1971?
770Who was the first person to fly solo, non-stop, and unrefueled around the world, completing the feat in 2005?
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