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| | Wordwizard Clubhouse - equal sign (Site not responding. Last check: ) |
 | | According to VNR Concise Encyclopedia of Mathematics, Emeritus, Caltech, the equal sign was invented by Robert Recorde, the Royal Court Physican for England's King Richard VI and Queen Mary. |
 | | In printed books before the modern equal sign, equality was usually expressed with a word, such as aequales, aequantur, esgale, faciunt, ghelijck, or gleich, and sometimes by the abbreviated form aeq (Cajori vol. |
 | | The equal symbol did not appear in print again until 1618, when it appeared in an anonymous Appendix, very probably due to Oughtred, printed in Edward Wright's English translation of Napier's Descriptio. |
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