For centuries, human societies have relied on calendars to structure their lives, align their rituals, and understand the ...

November 18, 1854. Edward Forbes died.—Though only thirty-nine when he died, Forbes was regarded as the leading British naturalist of the first half of the nineteenth century. He wrote important ...

This article was originally published with the title “ The Amazingly Accurate Calendar System of the Maya Indians ” in Scientific American Magazine Vol. 133 No. 5 (November 1925), p. 312 doi ...