<span>The most important advancement that was made by the Maya was B. the 365 day calendar.
This calendar has survived hundreds of years and is still used today. The Maya's were also the ones who developed the concept of the number zero, they predicted the lunar eclipses, and also tracked the cycles of the moon, planets, and stars. The Mayans used this technology they developed to plan for proper harvesting and crop rotations.</span>
<span>You're talking about the Napoleon of the West or at least that's what he liked to call himself. General Antonio Lopez de Santa Ana. Of course he had a few lapses of control over that 35 yr period. And then there was the time he was marched back to Mexico with his tail between his legs by the victorious Texan army led by Sam Houston. Adios, Amigo</span>
the answer is B: increasing trade with other nations
Americans have the geographical knowledge of the area and gain more from winning than Brittain did.