Orthodox Christianity, also called Orthodoxy, is the
original, unchanged church established by Jesus and the
Apostles. Its history is too long to do it justice on a
single page of a website but there are some good links here
to better articles than I could write.
I began my journey to Orthodoxy in college and am now a
member of The Orthodox Church in America and attend
services at St. Maximus Orthodox Church in Denton, Texas.
If you'd like to learn more about Orthodoxy, I'd suggest
starting with the Q&A section of the OCA site and then
moving on to reading The River of Fire for a good
discussion of salvation theology in the Orthodox faith.