soccer jerseys' colors are mostly picked by colors on the teams logo or flag (E.g. Spanish soccer team has two jerseys, one red and one yellow and those two colors are found of the flag & the Brazilian soccer team has colors yellow and blue and both are fond on the flag.............. and so on on most of the world soccer teams. :)
We celebrate by flying the flag.
You can celebrate flag day by wearing your country's flag.
what are Flag post Rules of SOccer
The only official flags associated with soccer are the four corner flags. The Laws of the Game (LOTG), specifically Law 1, do not prescribe a specific size for the cloth on the flags. The corner flag poles must be at least 1.5m (5 ft) tall with a non-pointed top.
As per FIFA Laws of the Game, "A flagpost, not less than 1.5 m (5 ft) high, with a non-pointed top and a flag must be placed at each corner."
We celebrate by hanging a flag and for when they adopted the pattern for the flag.( Stars and stripes)
American citezens celebrate Flag day
The linesmen have a flag each. They use these to indicate, a foul, a throw in, a corner, an offside, a goal kick or a substitution.
Yes, it is been a tradition. God knows why!
When the ball goes out of play off of the defending team, the attacking team is awarded with a corner kick. They can play the ball in short, or send a cross into the box for the forwards to get a header or volley it in. Trust me, I'm a ref.
Soccer is played on a rectangular turf or grass field (usually 180 x 90 ft, or at variations of that size). The field is lined with required markings and there are two goals with nets attached at either end. A corner flag is located at each corner for corner kicks. Usually there is one center referee who makes the calls, and two linesmen who help him by directing the direction of throw-ins, fouls, or offsides. Two teams play soccer, and each team has 11 players (including a goalie for each team). Teams are allowed to have substitutes, which can be motioned on by the center ref. Each player is required to wear a team colored jersey, shorts, shinguards, and acceptable shoes (cleats or not). Long socks are worn over shin guards.