For millennia, man has excavated into the earth. A type of excavation, quarrying, dates to prehistoric times and is typically performed to extract rock or minerals. A famous prehistoric example of quarried rock is Stonehenge in England, which dates to Neolithic times. In ancient Egypt, the need for building materials for pyramids and temples led… Read more »
Enjoy Labor Day Happy Labor Day 2020! This American Labor Day celebration is always the first Monday in September. Its origins come from the Labor movement that took place at the end of the 19th Century. Above all, this day recognizes the social and economic achievements of our American workers. So, this national holiday constitutes… Read more »
Earth Day 50th Anniversary Today, we celebrate an Earth Day 50th Anniversary. On Wednesday, April 22nd, 1970, the movement of American environmentalism was born. The recognition of human influence on mother earth on that day was historic. Millions and millions of people throughout the country participated in what was said to be a bright, clear,… Read more »
