This image shows the Great Sphinx. The great Sphinx with a Great Pyramid behind in the background.

During which era was it constructed?

equal area projections

equal-area projection. a projection in which regions on the earth's surface that are of equal area are represented as equal.

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.