Rolfe Writes What stands out to you the most after your first three days of the new school year? Which class do you think is going to be your favorite? Which class do you think will be the hardest? Easiest?

DO NOW What does the year 2016 mean? What does the year 1 mean? Why is our calendar divided into months? Why does a year have 365 days?

Time and the Calendar Throughout the world different systems have been used to mark the passage of time, but it has been common for cultures to count the passing of years from a specific event in their past. Ancient Greeks counted years from the first Olympic Games (776 B.C.) Romans based their calendar on the founding year of Rome (traditionally 753 B.C.). The Jewish calendar starts from their idea of when the world was created (3760 B.C.). The Muslim calendar begins with the the migration of the Prophet Muhammad from Mecca to Medina in A.D. 622. A monk called Dionysius Exiguus (early sixth century A.D.) invented the dating system most widely used in the Western world. For Dionysius, the birth of Christ represented Year One. This system was adopted with years expressed as either B.C. (Before Christ) or A.D. (Anno Domini—”The Year of Our Lord”). The abbreviations BCE (before the common era) and CE (common era) are sometimes used.

Dinosaurs 65 – 200 million years ago 64,998,984 BC - 199,998,984 BC

First written laws about 1772 BC Mesopotamia 10,000 – 1700 BC First written laws about 1772 BC

First written laws about 1772 BC Mesopotamia First written laws about 1772 BC

Ancient Egypt 3500 BC

1

Jamestown 1607

American Revolution 1776

1861 1865

1914 - 1918

1990

What year were you born.