It is a table or daily review for all days of the year, which may contain ephemeris, astronomical data, santorales. In some specialized collects only the important dates on a topic. It is a word of Arabic origin by 1575; 1604; 1605; 1606; 1575; 1582; ( to the manaak, "the weather or the climate") that had different interpretations in Europe and in the East, since the Arabs associated it with the stop of the camels in a journey guided by the stars, but in Spain it took directly the astrological concept (rather, astronomical) already associated with the dates, the seasons of the year and its climate for agriculture.