Year 1

4. Either of the two points in a year, around June 21 and December 21, when the sun reaches its highest or lowest point in the sky.
5. A period of 100 years.
9. A graphical representation of the sequence of events in chronological order.
10. A distinct period of time marked by particular characteristics or events.
11. A system of organizing and measuring time, typically divided into months, weeks, and days.
12. The first appearance of light in the sky before sunrise.
13. year A year that contains an extra day (February 29) to keep the calendar year synchronized with the solar year.

1. The period of the evening after sunset and before darkness falls.
2. A period of 100 years.
3. A period of 1,000 years.
6. Either of the two points in a year, around March 21 and September 23, when day and night are of equal length.
7. A graphical representation of the sequence of events in chronological order.
8. A group of people born and living at about the same time, sharing similar experiences and values.
10. A distinct period of time marked by particular characteristics or events.
12. A period of 10 years.