Creation
What is the one day every 4 years on the fourth year making one month
what is a leap year
How does Earth spin on
what is the axis
what is a system of organizing time that defines the beginning, length,and divisions of a year
what is a calendar
a span of time that equals exactly 365
what is a year
who created the leap year
who are the gregorians
a time or date that happens twice a year at which the sun crosses the celestial equator
what is an equinox
who created the first calender
who is the Babylonians /Sumerians
What is the imaginary line that passes through Earths center
What is the axis