People learn about life in hte distant past using caves, artifacts, digging in the earth, rocks, and ancient ruins. The caves help them find cave art. The artifacts help find tools, clothing, writings, and homes. Digging in the earth help them find bones of people, animals or plants. That is how people learn about life in the distant past.
People research material using the internet,libraries, museums,and encyclopedias. They can use the internet by looking up websites, images, and videos. You can use libraries by books, magazines, and movies. you can use encyclopedias by facts about how they lived. that's what they use for research.