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década Da Wikipédia, a enciclopédia livre
Séculos: (Século VI - Século VII - Século VIII)
Décadas: 590 600 610 620 630 - 640 - 650 660 670 680 690
Anos: 640 - 641 - 642 - 643 - 644 - 645 - 646 - 647 - 648 - 649
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.