4Mathematics and Astronomy: Advanced Knowledge
The ancient Egyptians possessed a remarkable understanding of mathematics and astronomy. They developed a decimal system based on ten, which enabled them to perform complex calculations. This knowledge was essential for the construction of their monumental architecture and for agricultural planning. They also created a calendar based on the lunar cycle, which consisted of 12 months and 30 days, with an additional five days added to align with the solar year. Their keen observations of celestial bodies informed their agricultural practices and religious rituals.