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In page Hittites:

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The Hittite language is recorded fragmentarily from about the 19th century BC (in the Kültepe texts, see Ishara). It remained in use until about 1100 BC. Hittite is the best attested member of the Anatolian branch of the Indo-European language family, and the Indo-European language for which the earliest surviving written attestation exists, with isolated Hittite loanwords and numerous personal names appearing in an Old Assyrian context from as early as the 20th century BC.[citation needed]