The Pledge of Allegiance is the official
national pledge of America.
"I pledge allegiance to the flag, of the United States of America, and for the republic, for which it stands, one nation, under God, with liberty and justice for all."
The Pledge of Allegiance is an oath...a promise to be a loyal patriot to the United States of America. The pledge is generally said in the mornings in public schools and public functions.
Parochial schools often make it a part of their morning ritual also, reciting it along with their morning prayers. Military personnel also sometimes recite it during drills or when in formation.
The Pledge of Allegiance started as a marketing slogan to sell American flags to public schools. The man who wrote the pledge had ties with President Benjamin Harrison, who proclaimed that school children were to recite the pledge on Columbus day in 1892.
Since then, it had changed in wording and has become our official national pledge.