may 8, 2995 BC - The Harappan Civilizations also
carved stones which represented
calendars, trading records, and art. The
Harappa Civilization also made
temples and many religious building
that are thought to be made for the
Harappan people to practice. This shows that
the Indus Valley Civilizations were advanced.
Source: http://www.visual-arts-cork.com/east-asian-art/indus-valley.htm