The word bagel is thought to derive from the Yiddish word bugel, and
from the German word bugel, which means a round loaf of bread. It is
also often listed as a derivative of the German word buegel, meaning
stirrup, and referring to a legend that the bakers of Vienna
commemorated John III's victory over the Turks in 1683 by molding
their bread into the shape of stirrups, because the liberated Austrians
had clung to the victorious king's stirrups as he rode by.

Ashkenazi immigrants in the 1880s (descendents of the medieval
Jewish communities of the Rhineland) brought the bagel to the Lower
East Side New York City, where it continues to flourish as a local
cuisine popular not only with any one ethnic group, but as an icon of
the city. The same phenomenon has happened to the Montreal bagel.
Until the 1920s, bagels were rare in other parts of the United States
other than a few cities with large Eastern European Jewish populations.
The bagel came into more general use throughout North America in
the last quarter of the 20th century. Today, bagels are enjoyed all over
the world, and have become one of the most popular breakfast foods.
History of the Bagel
Traditional
New York Style
Bagels