This is a bit of a complicated question, while the church SAID that they where trying to reclaim the holy land, but it was actually mostly started for political reasons.
Muslims and Christians actually got along fairly well in the 8th century. But with the Battle of Manzikert, the tension increased with the empire. Not to mention at this time the holy roman empire (HRE) had a large controversy, where people wondered if the catholic church of the HRE had the right to appoint clerics and other church officials.
This all lead to an increase in care in religion and with propaganda of a "just war" being spread around by the Papacy the war was inevitable.
The vast majority of them were people ... primarily men ... who hunted and gathered stuff to eat.
Lyndon Johnson was elected as the youngest minority leader in
Senate. Soon after election the democrats had won majority leader
in the senate. This gained Johnson huge skill which he later
obtained passage of a number of key Eisenhower measures. Later in
the 1960 campaign, Kennedy was Johnson running mate, Kennedy ended
up winning and Johnson made the Vice President. After Kennedy died
Johnson was sworn in as president. In 1964 Johnson won presidency
with over 15,000,000 votes. The republican party was a ruling group
of the time in the nation and though Kennedy wanted to stop civil
rights, he never got time to. So the republicans in the nation all
swarmed to Johnson to a new civil rights bill and tax cuts.
source: white house.gov
Answer:
For the Aztecs, the enviroment was more benevolent. The aztecs inhabited Central Mexico which is a highland area where temperatures are mild. Soils are also very fertile because they are volcanic. The biggest challenge they had to face was precisely the active volcanoes that sorround the Central Valley of Mexico.
For the Mayans, the enviroment was more unforgiving. They inhabited a lowland tropical jungle with high humidity and temperatures all-year round. The soils were not very fertile either.
It has been theorized that the Mayan civilization disappeared because of deforestation, which led to a rise of temperatures and a general worsening of enviromental conditions.
