The Mexicans in the battles of Palo Alto (May 8th) and Resaca de la Palma (May 9th).
Thus actual documents of native Aztec history, or copies of them, are still open to the study of scholars, while after the conquest interpretations of these were drawn up in writing by Spanish-educated Mexicans, and histories founded on them with the aid of traditional memory were written by Ixtilxochitl and Tezozomoc. In Central America the rows of complex hieroglyphs to be seen sculptured on the ruined temples probably served a similar purpose.
Cortes in 1519 is said to have received cotton garments as presents from the natives of Yucatan, and to have found the Mexicans using cotton extensively for clothing.
Far superior were the maps found among the semi-civilized Mexicans when the Spainiards first discovered and invaded their country.
For such purposes, as also for use as mirrors, masks and labrets, it was extensively employed, under the name, of itztli, by the ancient Mexicans, who quarried it at the Cerro de las Navajas, or "Hill of Knives," near Timapan.