Banneker took delight in the study of the languages, and soon mastered the Latin, Greek, and German. He was also proficient in the French. The classics were not neglected by him, and the general literary knowledge which he possessed caused Mr. Ellicott to regard him as the most learned man in the town, and he never failed to introduce Banneker to his most distinguished guests. About this time Benjamin turned his attention particularly to astronomy, and determined on making calculations for an almanac, and completed a set for the whole year. Encouraged by this attempt, he entered upon calculations for subsequent years, which, as well as the former, he began and finished without the least assistance from any person or books than those already mentioned; so that whatever merit is attached to his performance is exclusively his own. He published an almanac in Philadelphia for the years 1792, '3, '4, and '5, which contained his calculations, exhibiting the different aspects of the planets, a table of the motions of the sun and moon, their risings and settings, and the courses of the bodies of the planetary system. By this time Banneker's acquirements had become generally known, and the best scholars in the country opened correspondence with him. Goddard & Angell, the well-known Baltimore publishers, engaged his pen for their establishment, and became the publishers of his almanacs. A copy of his first production was sent to Thomas Jefferson, together with a letter intended to interest the great statesman in the cause of negro emancipation and the elevation of the race, in which he says,--