Anything that is created in the period studied, for example, Prehistoric, is also known as primitive material, i.e., an artifact that is used every day.
To read further about Ancient Primary Sources, go to the Harvard University School of the Classics page on Primary Sources
Primary sources provide firsthand accounts and evidence about an event, topic, or religious tradition. They are created by those who witness that experience. In Prehistoric times, the best way to see how people lived, fought, and survived was through the objects they left behind. For centuries, stories, traditions, and ways of life were passed down orally. For example, Homer is writing down Greek mythology and histories that had been passed down for generations. Even the Pentateuch, orally retold for generations before Moses wrote it down, is believed.
Even today, there are ancient languages that remain a mystery, as no modern man can translate them. I.e., Scandinavian Runes, Egyptian Hieroglyphics, Minoan Linear A, Meroitic from the Kingdom of Kush, and others.
To read further, The Archaeologist Blog—7 Lost Ancient Languages and Scripts that Have Not Yet Been Deciphered
Access Ancient Artifacts at the Museums
Featured article about Quaternary Geology and the ancient Nile and Son Valleys in Egypt.
Visit Digs in Tennessee:
Age of Grand Canyon Remains a Mystery by Dr. Brian Thomas from Institute & Creation Research
Case Study: Grand Canyon Evolution through the Ages by the National Parks Service (NPS)