it has been the heart of brick you see for he was from here the great naval figures like francis drake james cook and lord nelson set out to conquer the 7 seas and he had to that the english crown waited impatiently for the return of its heroes. even though greenwich now lives in the shadow of the high rise blocks of canary wharf. the name of this london suburb is still familiar to sail as the world over the prime meridian which divides the earth into an eastern and a western half runs through greenwich. in 1675 as a christopher wren the architect who designed some poles to feed will build an observatory on a hill in the south of the park make. the building was commissioned by king charles the 1st in order that the tables showing the movements of the celestial bodies and the positions of the fixed stars might be corrected with the greatest possible care and accuracy the aim being to determine lines of language you did see and thus to perfect the art of navigation. the problem of the time lane fixing the precise position of a ship in the vast expanse of the ocean say listen been able to work out t