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Mars definitely has a reddish tint, and even the ancient Egyptians called Mars “The Red One.” Where does the redness come from? The rocks on Mars are full of iron, and the dust from those rocks swirls around the atmosphere, which makes the planet appear red. Part of the “Mars in a Minute” series.
(Source: DCMP)
Timeblazers Jen and Sam travel back 63 million years before the first primitive people appeared on Earth, and they learn that people and dinosaurs never met. They jump to the Paleolithic age, when humans first appeared, to see some "cavemen," as they are often called. About 8000 BCE the first primitive civilizations began to develop after humans started farming. Then to 3100 BCE: The Egyptians. Around 750 BCE came the ancient Greek civilization; then from about 27 BCE to 476 CE came the Roman Empire. Then came the Middle Ages from 500 to about the year 1400, the Renaissance.
Using mud, clay, and tons of stone, ancient civilizations built buildings and monuments that are still standing today. The Egyptians built the Great Pyramid with an accurate measuring system, the ability to calculate areas and volumes of triangles, and a tremendous workforce that transported 1,000 tons of stone each day for 15 years. Other civilizations, such as the Romans, created marvels of engineering like the dome of the Pantheon, and built clean cities that included conveniences such as water management and sewers.
