One of the mysteries of the English language finally explained.
The prime meridian, which passes through the Royal Observatory at Greenwich, England, adopted internationally as the earth's zero of longitude in 1884.
- ‘By international convention, it passes through the original site of the Royal Observatory in Greenwich, England; for this reason, it is sometimes called the Greenwich meridian.’
- ‘Here the zero lines of longitude and latitude - the Greenwich meridian and the equator - bisect.’
- ‘Accurate measurements from space have led to another slight shift of the globe's most important line, and the GPS meridian now lies 102.48 metres east of the old Greenwich meridian.’
- ‘It lies 102 ½ metres further east than the official Greenwich meridian and is the line used for all air and sea navigation.’
- ‘I stop just outside the front door, and am rather pleased to discover that I live exactly 0°1'2 ‘west of the Greenwich meridian.’’
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