To find the tablecloth drop (the length your tablecloth will hang down from the tabletop), you simply subtract the table length from the linen size and then divide by two. For instance, you have a 48 inch square table and have a 70 inch square tablecloth.
Maya origins. While hunters and gatherers had a presence in Central America stretching back thousands of years, it was in what archaeologists call the Pre-classic period (1800 B.C. to A.D. 250) that permanent village life really took off.
The calendar dates back to at least the 5th century BC and is still in use in a few Mayan communities today. The Mayan calendar moves in cycles with the last cycle ending in December 2012. This has often been interpreted as the world will end on 21 December 2012, at 11:11 UTC.