1620s BC

==Events and trends==
* 1627 BC—Beginning of a period of cooling of the world climate lasting several years, recorded in tree-rings all over the world. It might have been caused by the Minoan eruption of Thera or the Avellino eruption of Mount Vesuvius.
* 1625 BC—Samsu-Ditana becomes King of Babylon (middle chronology).
* 1621 BC—Lullaia becomes the King of Assyria.
* 1620 BC—Mursili I becomes King of the Hittite Empire (middle chronology).
==Significant people==
*
==References==
 
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bs:1620te p.n.e.
ca:Dècada del 1620 aC
da:1620'erne f.Kr.
es:Años 1620 a. C.
eu:K. a. 1620ko hamarkada
ka:ძვ. წ. 1620-ები
ms:1620-an SM
sk:20. roky 17. storočia pred Kr.
sh:1620-e pne.
tt:MA 1620. yıllar
zh:前1620年代