It simply means "follower of Christ". You could make the same kind of word for any subject, such as "Hambugerian" or "Nintendonian"
The word "Christianity" come from the latin word "followers of christ" in around 200A.D. when it became the state Religion in the Roman Empire and the Middle East.
David Livingstone's he spread the word of god and converted people to christianity
http://en.wikipedia.org/wiki/Religion_in_Nigeria#Christianity
Missionaries taught the people of Tanzania Christianity.
The word Advent comes from Christainity & Protestantism. I also think that it is atleast 159 years old!
It's in the word, CHRISTianity.
christianity came from the heavens up ABOVE
Trends come and go, Christianity is at its best when unpopular.
Christianity
Christianity
to spread the word of Christianity.
the figure of Christianity is Jesus christ the son of god in the word Christianity the word christ is in it christians means followers of Jesus christ i hope this helps you
Christianity is God's word taught by Jesus