World History Chapter 1 Lesson 1

In the Gregorian calendar, events are dated either before or after the birth of Jesus.

A group of 100 years is known as a(n)

The Gregorian calendar

The most important fact regarding the discovery of the skeleton “Lucy"

Historians can learn about ancient civilizations by studying items such as weapons, tools, and pottery, which are called

The remains of plant and animal life from an earlier time are called fossils.

The first historical era, more than 5,500 years ago, is called ___ and refers to a time before people developed writing.

A group of ten years is known as a ______________.

Some early calendars developed by the Chinese, Egyptians, and Hebrews, were based on the cycles of the stars.

The study of human culture and how it develops over time is called