Nice article on infinity. Also little known is the fact that the symbol of infinity was introduced by clergyman and mathematician John Wallis, hundreds of years ago in 1655. Although not well-known, John Wallis was a talented individual as can be deduced from his biography. His works include integral calculus, analytic geometry, and collision of bodies. He was the one who coined the term “momentum”.

Source: ThoughtCo

Infinity has its own special symbol: ∞. The symbol, sometimes called the lemniscate, was introduced by clergyman and mathematician John Wallis in 1655. The word “lemniscate” comes from the Latin word *lemniscus*, which means “ribbon,” while the word “infinity” comes from the Latin word *infinitas*, which means “boundless.”

Wallis may have based the symbol on the Roman numeral for 1000, which the Romans used to indicate “countless” in addition to the number. It’s also possible the symbol is based on omega (Ω or ω), the last letter in the Greek alphabet.

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