Today is Flag Day, honoring the flag of our nation, and the beginning of Honor America Days. Though not well-known, the twenty-one days between Flag Day and Independence Day are designated by Congress as Honor America Days.
(a) Designation.— The 21 days from Flag Day through Independence Day is a period to honor America.
(b) Congressional Declaration.— Congress declares that there be public gatherings and activities during that period at which the people of the United States can celebrate and honor their country in an appropriate way.
ALMIGHTY God, who hast given us this good land for our heritage; We humbly beseech thee that we may always prove ourselves a people mindful of thy favour and glad to do thy will. Bless our land with honourable industry, sound learning, and pure manners. Save us from violence, discord, and confusion; from pride and arrogancy, and from every evil way. Defend our liberties, and fashion into one united people the multitudes brought hither out of many kindreds and tongues. Endue with the spirit of wisdom those to whom in thy Name we entrust the authority of government, that there may be justice and peace at home, and that, through obedience to thy law, we may show forth thy praise among the nations of the earth. In the time of prosperity, fill our hearts with thankfulness, and in the day of trouble, suffer not our trust in thee to fail; all which we ask through Jesus Christ our Lord. Amen. (1928 Book of Common Prayer)
The video below shows an interview with a presidential historian with some interesting history about the flag.