540s BC

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Mathematics

There is a productive period in mathematics. Ionian philosophers follow Thales in developing deductive proofs, the Chinese introduce rod numerals, and the Indians develop a geometry based on stretching ropes (similar to an earlier Egyptian practice). See also 300 bce Mathematics.


Millennium: 1st millennium BC
Centuries: 7th century BC6th century BC5th century BC
Decades: 570s BC 560s BC 550s BC540s BC530s BC 520s BC 510s BC
Years: 549 BC 548 BC 547 BC 546 BC 545 BC 544 BC 543 BC 542 BC 541 BC 540 BC
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