The Christian flag had its origin on Coney Island, New York. And it was all because someone failed to show up.
Back in 1897, on a cool fall day, the superintendent of Brighton Chapel was forced to give an impromptu lecture to his gathered students, because the scheduled speaker had failed to arrive for the event. Thinking fast on his feet, Superintendent Charles Overton saw a flag of the United States in front of Brighton Chapel and asked his students what a flag representing Christianity would look like. This led to a lively discussion with strong viewpoints. Some students saw the Christian flag as a simple design, others saw it as a multicolored, elaborate design. Taking their ideas and some of his own, Overton and Ralph Diffendorfer, secretary for the Methodist Young People's Missionary Movement, put together the first Christian flag and began promoting their vision. Like any new idea, it took awhile to catch on but eventually spread from church to church. Today it is the universal symbol of the Christian faith.
The white field of the Christian flag represents purity and forgiveness and the blue square represents faithfulness, truth and sincerity. The most conspicuous portion of the flag is the Christian cross.
Christian flags are available in a variety of sizes and with either a sewn or printed cross. You can also get an indoor Christian flag, complete with gold fringe and tassel.