The Kingdom of Prussia (aka "Germany") and the Austrian Empire joined together to seize the territory of Schleswig-Holstein from Denmark due to the regions majority German population.
The reason the Spanish established missions were to spread region into a new region. Hope this helps, good luck.
The Scientific Revolution marked the emerge of modern science towards the end of the Renaissance through the end of the 18th century, influencing the Enlightenment.
With its advances in the fields of astronomy, chemistry, biology, mathematics and physics, the Scientific Revolution put doubt in many of the Church's statements. This is why most Europeans feared and rejected the Revolution, as it posed a threat to what they believed in.
Even when most of the population refused to accept the changes in their cosmovision at the beginning, modern science made its way through society and started to enlighten the ones that were more open to it.
Harry Truman did not support the 26th Amendment. The vietnam war was going on and government stated if the youth can fight wars, pay taxes and go through the justice system they should be able to vote...Harry Truman wanted to raise the age of voters to 25.