Unfortunately it has perpetuated a lot of bigotry. The good side is that Christians support many charitable works...
Rationing, propaganda and total war
He helped them by showing the ways of Christianity and help them realize many things to help them in the future. that's why today we celebrate st Patrick's day as a reminder of what he did for the Irish and the world.
If you mean "Judgement Day", it is a day in Christianity where God will destroy the world and take all the Christians to heaven
Millions of people around the world.
Christianity began with the resurrection of Jesus Christ, which occured in Jerusalem in present day Israel. The movement spread to the region and into what is now Turkey and then into Roman provinces.
Christianity began to lose ground to 'secularism' especially in Western Europe from the 19th Century to present. Offsetting these losses was the spreading of Christianity to the non Western world which continues to this day. See related link below:
all around the world and in many different ways
I suspect it affected every day, not just one day.
It is not affected by the day of the week.
It started in what would be modern-day Israel, but began to spread around the world shortly after.
The Roman Empire(present-day Italy) was the first to establish Christianity as an official religion.
It showed the true power of what a alliance of freedomfighters can do . the strongest punch ever made on a country