Traditional Culture Encyclopedia - Almanac inquiry - What does genealogy mean? What's the difference between it and calendars and almanac?

What does genealogy mean? What's the difference between it and calendars and almanac?

Calendar is a table of years, months and days compiled by astronomical calculation; Calendar refers to the method used to arrange calendar spectrum, focusing on mathematics, astronomy and other calculations; Almanac refers to a kind of practical book, such as Old Yellow Calendar. Based on almanac, calendar notes are added for every day, indicating festivals, anniversaries or good or bad luck.