or the line. However, the popularity of thrown-snap formations from about 1920 to about 1950 (and the illegality of the handed snap in Canadian football when snapping by hand rather than foot was first prescribed in that game) induced some teams to place the quarterback a little farther back, receiving the snap via a short toss. Even ASCII art is subtle enough to show the left end above a little farther from the nearest other line player of the same team than is the right end. Such a slight additional gap is said to be "flexing" that end, but does not produce an additional position name. However, when the gap is considerably greater, that is said to be a "split end" (SE). That produced a position name when on offense a team played with one end split and the other not split—a "tight end" (TE). The split end being specialized for going downfield to catch forward passes, it becomes more useful to differentiate the split from the tight end than between left and right end. Instead of wingbacks or conventionally placed halfbacks, an offensive team could have backs positioned wide of the rest of the formation, similarly to a split end, to be pass receivers. Such a back would be called a "flankerback" or "flanker" (FL). A more straightforward use of the position name, "tailback", is shown below in an offensive short punt formation, whose use, despite its name, is not confined to punting. The line shown is balanced with one split end. In such a case, the side with the tight end is sometimes said to be the strong side of the line, and hence of the formation, because the tight end is better placed than the split end to block, especially on running plays. An additional justification for calling that the strong side in the example below is that the backfield has more players on that side, although that will not always be the case, and in this case the positioning of backs does not produce strikingly strong and weak sides, as opposed to the single wing formation shown above. SE T G C G T TE QB HB HB TB If the deepest back were a specialist in punting, one might substitute "P" for "punter" for the "TB" above. Age of confusion The trend of naming offensive positions for the role or build of player in it