Archaeology
Historical Records
Age Testing
Relative dating and Superposition
100

Objects made by people, such as tools, weapons, containers, etc

Artifacts

100

Tests whether the document contradicts other reliable documents

External test

100

The age of an artifact according to a date printed on it, or to a reference in a work of history

Known age

100

A determination of whether an object is older or younger than another artifact.

Relative age

200

The study of Earth's history as revealed in the rocks that make up the Earth

Geology

200

Identifies how many years have passed between the time the original was written and the time of first known copy.

Bibliographic test

200

The process of counting tree rings to determine the age of trees

Dedrochonology

200

States that artifacts found in deeper layers of rock or earth are older than those found in shallow layers.

Principle of superposition

300

The study of life's history through the preserved remains of once-living organisms

Paleontology

300

Tests whether the document agrees with itself

Internal test

300

Unique patterns of rings that correspond to several years of weather in a particular region

Master tree ring patterns

300

Stacked horizontal layers of sedimentary rock, soil, or material formed one on top of another over time.

Strata

400

The study of past human life as revealed by preserved relics.

Archaeology

400

Ancient Egyptian writing that uses symbols and pictures.

Hieroglyphics

400

Using a radioactive process to determine the age of an item.

Radiometric testing

400

The preserved remnant, impression, or trace of a once-living organism from a past geologic age.

Fossil

500

An object, tradition, or system from the past that has survived into the present (e.g., artifacts)

Relic

500

One of the oldest existing manuscripts of the Greek Bible

Codex Vaticanus.

500

Dates that are determined by archaeologists in the absence of known ages.

Assigned ages
500

The surface layer of the Earth

Crust

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