This website could help you http://www.weather.gov/cle/Seasons
<span>the magnetic compass and gunpowder</span>
Hot springs and geysers are heated geothermally using Earth's mantle as it's source.
The land and the colors of the earth
The best answer for this question would be:
detailed hieroglyphic writing system
The Mayans had exceptional writings that recorded what they
did throughout history. They made these writings in order to keep track of the
political rulers and the culture that they were establishing.
