The northern European plain is vastly devoid of trees and the major vegetation is grass and farming crops. The geography has been largely transformed by humans so the most likely things to be found there are man-made.
Attempts to instruct and edify the audience as well as entertain it by presenting a story with a clear moral were called morality plays. Morality plays are a type of allegory in which the protagonist is met by personifications of various moral attributes that help him on his way to good.
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.