Symbol of the
state of
Texas. Comes from the original
Republic of Texas flag (which I believe was the same as the current state flag -- not sure though), which resembled an American flag, except that it had a single star in the blue field.
When the Minnesota North Stars hockey team moved south in 1993 to the Dallas-Fort Worth area, they originally wanted to adopt the "Lone Stars" nickname; however, the phrase "Lone Star State" is trademarked by the state, so they simply became the Dallas Stars.