[Aztlan] Question about arrows and arch

[GuateWeb - Posada Belen]

Dear Listeros

I will like to ask if is any one who can point me to some light about when the inhabitants of mesoamerica and specially Guatemala started the use of the arrow and archs? and if any study/information about the rock weels (known as "donas") that are so common in Guatemala?

Thank you for any help

Rene Sanchinelli
www.posadabelen.com
www.guatemalaweb.com