Context

Context of An almanack for the year of our Lord, MDCLXXXVIII : being bissextile or leap-year and from the creation 5637 : the vulgar notes of which are golden number 17, epact 07, [brace] [brace] cicle of the [sun] 17, Domin. letters AG : calculated for and fitted to the meridian of Boston in New-England, where the North Pole is elevated 42 gr. 30 m.
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