The Austro-Hungarian Empire blamed the entire Serbian country for the death of the Archduke instead of the terrorist group responsible. The Bosnians were close to the Serbs, and both countries took great offense to the blame.
When Stalin blockade Berlin. Americans, English and French made air drops.
The social order of pre-Revolutionary France was composed of three states: the 1st state was made up of clergymen, the 2nd state included all the nobility, and the 3rd state was formed by the rest of the population of France, including the peasantry, the bourgeoisie, and the city workers.
The experiences of the nobility and the bourgeoisie were very different during this period. The nobiity included around 1-2% of the population of the country. They were mostly exempt from taxes and for the most part, did not have a job. On the other hand, the bourgeoisie was a large percentage of the population, and carried a significant tax burden. This class was the most educated and wealthiest part of the 3rd State, and they resented the privileges of the nobles, in particular the tax exemptions. The conflict between these classes was a reason for the French Revolution.
Minor party I not widely supported
The Catholic Church strongly opposed the spreading of the heliocentric theory because it meant that the holy book of Christianity, the Bible, was wrong, and that what they were propagating for centuries that the Earth was the center of the universe and that everything circles around our planet was a lie. This was going to make a big damage on the credibility of the church and the skepticism towards it would have grown more and more. The church, considering it had the power, was using all measures possible to stop this, so lots of scientists found themselves imprisoned, hanged, burned alive, killed brutally...