"Revised edition of paper presented at the XXVI International American Congress in Seville. October 12, 1935." ...
Amid rubble buried beneath a Maya pyramid in Northern Guatemala, archaeologists found a broken bit of plaster with a glyph painted on it. A bar-and-dot symbol for the number “7” is drawn above a deer ...
pt. 1. Calendar in theory -- ch. 1. Calendar -- ch. 2. Astronomical background -- ch. 3. Time and the clock -- ch. 4. Writing and libraries -- ch. 5. Numbers and ...