In 46 BCE, Julius Caesar declared that this year would be 445 days long, with twenty-three days being added to the end of February and sixty-seven days between November and December. This brought the calendar into synchronization with the seasons. Then, he established a year of 365 days with an intercalary day every fourth year. He also moved the beginning of the year from the first of March to the first of January. The months were lengthened to thirty or thirty-one days, except February, which kept twenty-nine days in regular years and thirty days in leap years. His inspiration to make changes was a result of a visit to Egypt.
