Encyclopedia > 550s

Article Content

550s

Centuries: 5th century - 6th century - 7th century

Decades: 500s - 510s - 520s - 530s - 540s - 550s - 560s - 570s - 580s - 590s - 600s

Years: 550 551 552 553 554 555 556 557 558 559 560

Events and Trends

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Quadratic formula

... If the discriminant is zero, then there is a repeated solution x, and this solution is real. (Geometrically, this means that the parabola described by the quadratic ...