The song celebrates the anniversary of First Contact Day, April 5th, 2063. The day goes down as one of the most important days in Trek history. It is the day that Zefram Cochrane flew the first Warp 1 flight in his ship named the Phoenix. A Vulcan expedition ship saw his ship travel at warp speed, and landed in Bozeman Montana to meet the creator of the first human Warp capable ship. I love this stuff.