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In Greek mythology, Lachesis (also Lakhesis, Greek: Λάχεσις, English: "disposer of lots", Etymology: λαγχάνω, langchano, to obtain by lot, by fate, or by the will of the gods) was the second of the Three Fates, or Moirai: Clotho, Lachesis and Atropos. Normally seen clothed in white, Lachesis is the measurer of the thread woven by Clotho's spindle, and in some texts, determines Destiny, or thread of life. Her Roman equivalent was Decima. Lachesis was the apportioner, deciding how much time for life was to be allowed for each person or being. She measured the thread of life with her rod. She is also said to choose a person's destiny after a thread was measured. In mythology, it is said that she appears with her sisters within three days of a baby's birth to decide its fate.
According to Hesiod's Theogony, she and her sisters (Atropos and Clotho) are the daughters of Zeus and Themis. Lachesis is also mentioned in the tenth book of the Republic of Plato as the daughter of Necessity. She instructs the souls who are about to choose their next life, assign them lots, and presents them all of the kinds, human and animal, from which they may choose their next life.
Outside of mythology 
- Lachesis is a minor character in the LucasArts video game Loom.
- Lachesis is a genus of pit vipers sometimes called bushmasters. It includes the largest venomous snake in the Western Hemisphere.