alleryWho established the position of the historic Greenwich prime meridian in 1851?
ANevil Maskelyne
BEdmond Halley
CJohn Flamsteed
DSir George Airy
Answer & Solution
Correct answer: D. Sir George Airy
1. The meridian is based at the Royal Observatory, Greenwich.
2. Its position was established by Sir George Airy in 1851.
3. Halley, Flamsteed and Maskelyne were earlier Astronomers Royal.
_Source: Wikipedia, Prime meridian, Prime meridian at Greenwich_
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