Answer: Most modern schools use a fall to spring school calendar because colonial children had to farm during the summer months.
Step-by-step explanation:
The prevailing academic year comes from colonial times when America was mostly agrarian. Children had to start school in the late fall, following the harvest of the crops. The school year lasted through winter and the early spring until the kids were required at home to help with planting and working on new crops.
In the present, this system is outdated, and it can generate what has been called the summer slide, meaning students can lose some acquired knowledge during that the three-month summer vacation.