well barely know one know exept for dead people who lived a billon years ago
100 years ago is 1909, therefore it is the 20th century.
Egyptians people who invented the Multiplication.Babylonians thousands of years ago.
people hundreds years ago used pencil and paper to measure
49 years ago (as of 2017 !)
no. I think it can be argued that we use more energy now than we did 100 years ago. However, in the short term we are becoming more efficient in how we use our energy.
The people now known as the Aboriginal people of Australia were the first to arrive, but not as long as 70000 years ago.
People might be taller and heavier than they were 500 years ago because they are eating more. They also have access to better medical care than 500 years ago.
Nuclear energy is used as a source of heat. The heat from the reactor is used to heat up water and the steam moves a turbine that generates electricity. It's the same principal with a coal power plant, only the source of heat is different.
prosperous?? People these days are more prosperous than 100 years ago.
way
Two thousand years ago, people had different skill sets and knowledge base than we do today. For instance, contemporary culture is more technologically advanced than those living 2000 years ago.
100billion years ago
in the 1000's? people lived no more than 30-50 years
There are more motorists and higher-powered vehicles on the roads than 30 years ago.
By the solar energy of the son
Bread 40 Years Ago and NowBesides being a lot more expensive now than it was 40 years ago, there are a lot more varieties of bread on the market now than there were then. 40 years ago, people ate more white bread. Once the health benefits of whole wheat and other whole grain breads became known, people started buying them more. Now, there are many types of whole grain breads to chose from.