Do you know about the PLUS sign?

THE PLUS SIGN (+)
  • Michael Stiple invented the plus sign in 1544.
  • It was reintroduced by a mathematician Robert Recorde in 1577.
  • The plus sign is first ever printed in the book  titiled "Ayn New Kunstich Buech", written by Henricus Grammateus.
  • Another names for plus 
    • ADDITION
    • INCREASE
    • ADD
    • ENLARGED
    • MORE
    • POSITIVE.

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