That is a true statement.
It was important in the development of astronomy and science because it was the first model that aimed to predict how the planets move in their orbits. Despite being a complicated mix of circles and epicycles it was not a bad model and it worked well for at least 1500 years until observations became accurate enough to show its imperfections
“A calendar was needed in the first place to track seasons. ... The progression of seasons ensured that there were 12 months in a year. Since the lunar cycle is shorter than 30 days, an extra month was added once every few years to keep calendars in sync with the seasons.” Need more explanation? Can you please mark me Brainliest?
I would think the author is speaking about an political event in which people vote.