[slaw] Yes, that common believes.
But it giving 65 -3.5 =61.5k us to develop writing systems. Isn't
strange?
----
[davius] The writting was developed in at least 4 regions
independently: China, Middle East, Mesoamerica, Easter Island. Mainly this
systems were associated to practical reasons: stock control, commemorative
inscriptions, temple accounts, etc, etc (except in China, where it
seems that the adinatory practices where important for the development of
writting). If you see at the origin of the earlier writting systems you can see
that all are activities related to administrative activities and the
existence of earlier civilizations required the existence of a Neolithic
economy. In ~65K there was no developed agricultural system and thus the
societies had Paleolithic economies. The writting emerges with the earlier
centrized administrations! (It does not depends on intellectual capabilities,
but on economical organization).