(M263) However, there are grounds for thinking that intercalary periods have commonly been esteemed unlucky. The Aztecs certainly regarded as very unlucky the five supplementary days which they added at the end of every year in order to make up a total of three hundred and sixty-five days.(775) These five supplementary days, corresponding to the last four of January and the first of February, were called _nemontemi_, which means “vacant,” “superfluous,” or “useless.” Being dedicated to no god, they were deemed inauspicious, equally unfit for the services of religion and the transaction of civil business. During their continuance no sacrifices were offered by the priests and no worshippers frequented the temples. No cases were tried in the courts of justice. The houses were not swept. People abstained from all actions of importance and confined themselves to performing such as could not be avoided, or spent the time in paying visits to each other. In particular they were careful during these fatal days not to fall asleep in the daytime, not to quarrel, and not to stumble; because they thought that if they did such things at that time they would continue to do so for ever. Persons born on any of these days were deemed unfortunate, destined to fail in their undertakings and to live in wretchedness and poverty all their time on earth.(776) The Mayas of Yucatan employed a calendar like that of the Aztecs, and they too looked upon the five supplementary days at the end of the year as unlucky and of evil omen; hence they gave no names to these days, and while they lasted the people stayed for the most part at home; they neither washed themselves, nor combed their hair, nor loused each other; and they did no servile or fatiguing work lest some evil should befall them.(777)