There's nothing wrong, it's just arbitrary. Julius Caesar decided to start the year ten days after the solstice because he wanted the year to start on a new moon, and that's when it happened to fall in 46/45 BC, when he invented his calendar. The Romans were big into the lunar cycle.Robin Hood wrote:It's obvious that something's wrong, otherwise Christmas day would also be new years day.
All of these calendar problems arise because the solar year is not evenly divisible by solar days or lunar months. But we've never had a problem counting the years as they go by. We've always known exactly what year it is.