<span>Al─Khwarizmi wrote an algebra textbook that was the standard for centuries during the golden age of islam :)</span>
Answer: Four geological ages.
Explanation:
he development of the country is divided into four geological ages, prehistoric or Precambrian, ancient or Palaeozoic, Middle Ages Mesozoic, and New Age Cenozoic.
- The Precambrian period begins after the formation of the Earth's crust and lasts about 4 billion years, and it is the oldest and most extended period of Earth's history.
- The beginning of the old age was marked by intense volcanic activity and the Ice Age.
- The Middle Ages were the period of the dinosaurs who were the dominant beings of that period.
- The new age, or the age of mammals, begins with the change of the warm and cold periods and continues to this day.
Answer:
I'd say the Great Wall of china
Explanation:
built over 2300 years ago, it's over 20,000 miles long!
Answer:
The Emancipation Proclamation changed the meaning and purpose of the Civil War. The war was no longer just about preserving the Union— it was also about freeing the slaves. Foreign powers such as Britain and France lost their enthusiasm for supporting the Confederacy.
Explanation:
Salmon P. Chase was on the the first 1 dollar bill.