'On the 1st day of spring or fall, the Sun is directly over this imaginary line'
the Equator
THE WORLD: On the 1st day of spring or fall, the Sun is directly over this imaginary line
On the 1st day of spring or fall, the Sun is directly over this imaginary line
On the 1st day of spring or fall, the Sun is directly over this imaginary line
THE WORLD
the Equator
THE WORLD