Short answers, pulled from the story.
The word Christian derives from the Koine Greek term Christianos, a translation of the Biblical Hebrew mashiach. This title means anointed one and carries an adjectival ending borrowed from Latin to denote adhering to or belonging to someone.
Armenia became the first state to adopt Christianity officially in 301 AD. Georgia followed as the second state to adopt Christianity officially in 337 AD.
As of 2020 Christianity had approximately 2.4 billion adherents representing about 33 percent of world population. A 2011 Pew Research Center survey found 2.3 billion Christians worldwide up from about 600 million in 1910.
Highest numbers found in Germany New Zealand Estonia averaging 13.6 13.5 13.1 years respectively. Singapore outranks other nations regarding university degree attainment at 67%.
Investigation found approximately 80% persecuted believers worldwide are Christians. BBC News reported persecution near genocide levels the 3rd of May 2019.