The famous pilgrim celebration at Plymouth Colony Massachusetts in 1621
    is traditionally regarded as the first American Thanksgiving. However, there
    are actually 12 claims to where the “first” Thanksgiving took
    place: two in Texas, two in Florida, one in Maine, two in Virginia, and five
    in Massachusetts.
President Jefferson called a federal Thanksgiving proclamation “the
    most ridiculous idea ever conceived".
The famous “Pilgrim and Indian” story featured in modern Thanksgiving
    narratives was not initially part of early Thanksgiving stories, largely
    due to tensions between Indians and colonists.
Held every year on the island of Alcatraz since 1975, “Unthanksgiving
    Day” commemorates the survival of Native Americans following the arrival and settlement of Europeans in the Americas.
The first Thanksgiving in America actually occurred in 1541, when Francisco
    Vasquez de Coronado and his expedition held a thanksgiving celebration in
    Palo Duro Canyon in the Texas panhandle.
The turkeys typically depicted in Thanksgiving pictures are not the same
    as the domestic turkeys most people eat at Thanksgiving. Domestic turkeys usually
    weigh twice as much and are too large to fly.
The average long-distance Thanksgiving trip is 214 miles, compared with
    275 miles over the Christmas and New Year’s holiday.
Americans eat roughly 535 million pounds of turkey on Thanksgiving.
One of the most popular first Thanksgiving stories recalls the three-day
    celebration in Plymouth, Massachusetts, in 1621. Over 200 years later, President
    Lincoln declared the last Thursday in November as a national day of thanksgiving,
    and in 1941 Congress established the fourth Thursday in November as a national
    holiday.
Every Thanksgiving, a group of Native Americans and their supporters gather
    on Cole’s Hill in Plymouth to commemorate a National Day of Mourning.
    The flyer for the event in 2006 reads, in part, “Participants in National
    Day of Mourning honor Native ancestors and the struggles of Native peoples
    to survive today".
Thanksgiving is an amalgam of different traditions, including ancient harvest
    festivals, the religious New England Puritan Thanksgiving, the traditional
    harvest celebrations of England and New England, and changing political and
    ideological assumptions of Native Americans.
Since Abraham Lincoln proclaimed a national Thanksgiving holiday in 1863,
    Thanksgiving has been observed annually. However, various earlier presidents--including
    George Washington, John Adams, and James Madison--all urged Americans to
    observe various periods of thanksgiving.
The Pilgrim’s thanksgiving feast in 1621 occurred sometime between
    September 21 and November 1. It lasted three days and included 50 surviving
    pilgrims and approximately 90 Wampanoag Indians, including Chief Massasoit. Their
    menu differed from modern Thanksgiving dinners and included berries, shellfish,
    boiled pumpkin, and deer.
Even though President Madison declared that Thanksgiving should be held
    twice in 1815, none of the celebrations occurred in the autumn.
Now a Thanksgiving dinner staple, cranberries were actually used by Native
    Americans to treat arrow wounds and to dye clothes.
The tradition of pardoning Thanksgiving turkeys began in 1947, though Abraham
    Lincoln is said to have informally started the practice when he pardoned
    his son’s pet turkey.
When President Franklin D. Roosevelt moved Thanksgiving to the next-to-last
    Thursday in November to prolong the holiday shopping season, many Republicans
    rebelled. The holiday was temporarily celebrated on different dates: November
    30 became the “Republican Thanksgiving” and November 23 was “Franksgiving” or “Democrat
    Thanksgiving".
Not all states were eager to adopt Thanksgiving because some thought the
    national government was exercising too much power in declaring a national
    holiday. Additionally, southern states were hesitant to observe what was
    largely a New England practice.

 
Sarah Josepha Hale (1788-1879), who tirelessly worked to establish Thanksgiving
    as a national holiday, also was the first person to advocate women as teachers
    in public schools, the first to advocate day nurseries to assist working
    mothers, and the first to propose public playgrounds. She was also the author
    of two dozen books and hundreds of poems, including “Mary Had a Little
    Lamb.”
  Considered the "Mother of Thanksgiving," Sara Hale was
  an influential editor and writer who urged President Lincoln to proclaim a
  national day of thanksgiving. She selected the last Thursday in November because,
  as she said, harvests were done, elections were over, and summer travelers
  were home. She also believed a national thanksgiving holiday would unite Americans
  in the midst of dramatic social and industrial change and “awaken in
  Americans’ hearts the love of home and country, of thankfulness to God,
  and peace between brethren
Thanksgiving football games began with Yale versus Princeton in 1876.
In 1920, Gimbels department store in Philadelphia held a parade with about
    50 people and Santa Claus bringing up the rear. The parade is now known as
    the 6abc IKEA Thanksgiving Day Parade and is the nation’s oldest Thanksgiving
    Day parade.
Established in 1924, the Macy’s Thanksgiving Day Parade ties for second
    as the oldest Thanksgiving parade. The Snoopy balloon has appeared in the
    parade more often than any other character. More than 44 million people watch
    the parade on TV each year and 3 million attend in person.
Baby turkeys are called poults. Only male turkeys gobble and, therefore,
    are called gobblers.
In 2001, the U.S. Postal Service issued a Thanksgiving stamp to honor the
    tradition “of being thankful for the abundance of goods we enjoy in
    America.
Long before the Pilgrims, native Hawaiians celebrated the longest thanksgiving
    in the world—
Makahiki, which lasted four months, approximately
    from November through February. During this time, both work and war were
    forbidden.
In 2009, roughly 38.4 million Americans traveled more than 50 miles to be
    with family for Thanksgiving. More than four million flew home.
The people of the Virgin Islands, a United States territory in the Caribbean
    Sea, celebrate two thanksgivings, the national holiday and Hurricane Thanksgiving
    Day. Every Oct 19, if there have been no hurricanes, Hurricane Day is held
    and the islanders give thanks that they have been spared.
Thanksgiving can occur as early as November 22 and as late as November 28.
The Friday after Thanksgiving is called Black Friday largely because stores
    hope the busy shopping day will take them out of the red and into positive
    profits. Black Friday has been a tradition since the 1930s.