Read the text about Mexico and answer the following questions.
Brief Overview of the History of Mexico
Mexico was the home to many great civilizations including the Olmec, the Maya, the Zapotec, and the Aztec. For over 3000 years before the Europeans arrived these civilizations flourished.
The Olmec civilization lasted from 1400 to 400 BC followed by the rise of the Maya culture. The Maya built many large temples and pyramids. The great ancient city of Teotihuacan was built between 100 BC and 250 AD. It was the largest city in the area and probably had a population of more than 150,000 people. The Aztec Empire was the last great civilization prior to the arrival of the Spanish. They came into power in 1325 and ruled until 1521.
MEXICO-Timeline and History Overview. Ducksters. Available at: https://www.ducksters.com/geography/country/ mexico_history_timeline.php. Accessed on: Sept. 15th, 2023
a) Which verbal tense is used in the text? Why is it used?
b) What is the meaning of "BC" and "AD", used in "The great ancient city of Teotihuacan was built between 100 BC and 250 AD"?
