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October 21 is the 294th day of the year in the Gregorian calendar (295th if leap year). It 71 days before the end of the year.
There is no celebration for this day!
Marty McFly arrives in Hill Valley(October, 21 2015)
There is no saying for this day!
Sign of the Zodiac: 29th day of the astrological sign of Libra.