Nicholas II or Nikolai II (Russian: Николай II Алекса́ндрович, tr. Nikolai II Aleksandrovich; 18 May [O.S. 6 May] 1868 – 17 July 1918), known as Saint Nicholas the Passion-Bearer in the Russian Orthodox Church, was the last Emperor of Russia, ruling from 1 November 1894 until his forced abdication on 15 March 1917.
Aims to create global companies from start-ups, using the United Kingdom as a strategic headquarters
<span>Andrew Johnson's behavior strengthened the unity between moderate and Radical Republicans and prompted many Democrats to support them as well.</span>
Answer;
Vikings accepting Christianity
Most important event during the period of European invasions is the vikings accepting Christianity.
Explanation;
At the beginning of the Viking Age, almost the entire population of Scandinavia was pagan, however the vikings had many Gods and it was not a big deal for them to accept the Christian god alongside their own.
The conversion of Vikings to Christianity occurred without violence, by the end of the Viking age most vikings had become fully Christian and were baptized and buried in that faith.
I believe it's quadratic, as quadratic matches the second time while linear matches the first time you find the differences.