A pyramid or a burial chamber.
The Classical Age
No the "Pyramid Age" lasted from 2630 BC until about 1514 BC.
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the real name of the great pyramid is the pyramid of KHUFU. It is also the biggest pyramid in all of Egypt with a height of 441 feet!
Another name for population pyramid is Age-Sex graphs.
the pyramid age
The Old Kingdom
the old kingdom.
Age structure diagramA population pyramid, also called an age pyramid or age picture diagram, is a graphical illustration that shows the distribution of various age groups.
Another name is tetrahedra
A tetrahedron.
A triangular pyramid.
the old kingdom.
altitude
the old kingdom.
The age of Enlightenment is another name for age of reason.