The canadians of the first nations are descendants of thoses first settlers from asia
Lots of trade and inventores
The answer I believe is D) The loss of healthy young men during World Wars I and II created an excess of healthy, marriageable young women.
Of all the ancient calendar systems, the Maya and other Mesoamerican systems are the most complex and intricate. They used 20-day months, and had two calendar years: the 260-day Sacred Round, or tzolkin, and the 365-day Vague Year, or haab. These two calendars coincided every 52 years.