response: I don't really know of anything, though there are dog pots buried in shaft tombs about 300 BC that may depict Techichis.
original_response: Besides being fans of Taco Bell?  Well they were buried in ancient shaft tombs back in 300 BC
history: My parents just adopted a yappy little Chihuahua. Not so sure I'm stoked about the idea. I don't really know if they have any redeemable or interesting qualities, do you? Well, they descended from the Techichi, which was a favorite dog of the Toltec civilization in Mexico. Yeah, I imagined they would come from Mexico. I still don't understand why they're so small, though. Did they just get bred that way somehow? Well the earliest evidence show that they were around in 100 AD, so as far as breeding I do not know Ah, that's alright. I guess it's kind of cool that they've been around that long. They must have a long and rich heritage, huh? Have they done anything cool since they've been around for so long?
knowledge: No records of the Techichi are available prior to the 9th century, although dog pots from Colima, Mexico, buried as part of the western Mexico shaft tomb tradition which date back to 300 BC are thought to depict Techichis.