One of the most significant challenges is building an airplane had to do with "propulsion", since the technology that allowed motors to have enough energy to lift an airplane into the sky with a passenger wasn't available for most of history.
Answer:
Martin Luther was formally excommunicated from the Catholic Church
Explanation:
The 95 Theses was seen as a threat to the authority of the popes
Answer:A protection enabling a citizen to be treated fairly under the law.
Explanation:
