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periods of history. What periods of history can you name? Read and think. One, read and look at

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the timeline. Find the name of A, the longest period of history, B, the period we're in now,

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C, the period that ended in 1492. Very important period. History is divided into different periods.

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Each period of history starts and ends with an important event.

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Prehistory started when humans first appeared and started to use tools.

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It ended when people invented writing.

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Ancient history started when people invented writing.

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It ended when the Roman Empire fell.

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The Middle Ages started when the Roman Empire fell.

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They ended when Columbus discovered America.

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the early modern age started when columbus discovered america it ended when the french

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revolution happened in many countries the modern age started when the french revolution happened

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in spain the modern age started with the war of independence every year has a number for example

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1492. Each year belongs to a century. A century is a period of 100 years. For example, 1492

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belongs to the 15th century. 476 belongs to the 5th century. We count years starting from

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the year 1. This was when Jesus Christ was born. Years and centuries after Jesus was

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born are called AD. Years and centuries before Jesus was born are called BC.