i have no idea so don't ask again
No. The Aztecs are credited with making the 365-day calendar.
so they know when to plant and harvest crops
Calandar The calendar was made by the Aztec's. Sincerely, iblog
They made the 365 day calendar
The ancient Egyptians developed the 365-day calendar around 4236 BCE. This calendar was based on their observations of the solar year and was divided into 12 months of 30 days each, with an additional five days added at the end of the year. This innovation helped them align their agricultural activities with the annual flooding of the Nile River.
a number system based on ten, fractions and whole numbers, geometry to measure land, and the calendar.
Sumerians made several things including The Calendar, 60 minute Idea, and even created several units of measurement.
the egyptians used hyroglyphs for mathematical problems , but only used fractions with 1 in the numerator. i dont think they were good scintists, for they were the ones who thought that the sun rotated around th earth.
No. The mayans made the calendar and this calendar is what we use today.
the roman calendar
You can make a calendar by using different websites; see related links.
they made alot of achievements