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Many peoples says no one discovered Himalayas. It was always know. But most of the peoples believe it was discovered by H W Tilmon and Eric Shipton.

And the first persons climbed on it was 
Edmund Hillary and Tenzing Norgay Sherpa. they bother climbed at the same time, so it was 2 person climbed first on it. 
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U r right priyambakshi no one discover it & thanx
I don't know who discover Himalayas but Edmund Hillary and Tenzing Norgey are the first to climb on it.
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