| Day | Event | Date | Date Owner | Type | Description |
|---|
| Federal Holidays | | | | http://www.opm.gov/Operating_Status_Schedules/fedhol/2012.asp |
| 01/01 | New Years | 1/1/2012 | Calendar | Minor Holiday | |
| 01/02 | New Years (Federal Holiday) | 1/2/2012 | Calendar | Federal Holiday | Same day every year. If on a weekend, closest Fri or Mon. |
| 01/06 | Charles Schriener III | 1/6/1927 | Calendar | Famous Birthday | |
| 01/11 | McIntyre Ranches Established | 1/11/1879 | McIntyre | Founding | |
| 01/16 | MLK Jr. Day | 1/16/2012 | Calendar | Federal Holiday | 3rd monday in Jan |
| 01/17 | White Rock Ranch Appreciation Day | 1/17/2012 | McIntyre | Event | |
| 01/19 | Rebel Red | 1/19/1999 | Semkin | LH Birthday | |
| 01/20 | Inauguration Day | 1/20/2013 | Calendar | Federal Holiday | Jan. 20th every four years |
| 02/01 | National Freedom Day | 2/1/2012 | Calendar | Minor Holiday | Same Day Every year |
| 02/02 | Groundhog Day | 2/2/2012 | Calendar | Minor Holiday | Same day every year |
| 02/06 | Lucky Falling Star Ranch Founded | 2/6/1991 | Brown | Founding Date | |
| 02/06 | Ronald Reagan's | 2/6/1911 | Calendar | Famous Birthday | |
| 02/07 | J.R. Seman | 2/7/1997 | Spidle | Birthday | |
| 02/12 | Abraham Lincoln | 2/12/1809 | Calendar | Famous Birthday | Same day every year |
| 02/14 | St. Valentine's Day | 2/14/2012 | Calendar | Christian Holiday | Same day every year |
| 02/20 | Washington's Birthday (observed) | 2/20/2012 | Calendar | Federal Holiday | 3rd monday in Feb |
| 02/22 | Ash Wednesday | 2/22/2012 | Calendar | Christian | http://www.holidays.net/easter/eadates.htm |
| 02/22 | George Washington | 2/22/1732 | Calendar | Famous Birthday | Same day every year |
| 02/24 | Gov. Wilson Shannon | 2/24/1802 | Calendar | Famous Birthday | Same day every year |
| 02/26 | Double R Longhorns Established | 2/26/1995 | Snyder | Founding | |
| 03/05 | Charles Goodnight | 3/5/1836 | Calendar | Famous Birthday | |
| 03/10 | Mo Kan Sale | 3/10/2011 | Calendar | Event | Second Saturdays in March every year. |
| 03/11 | Daylight Saving Time Begins | 3/11/2012 | Calendar | Season | Second Sunday in March |
| 03/11 | Phenomenon | 3/11/1983 | Calendar | LH Birthday | |
| 03/15 | Charlene Semkin starts first Longhorns in Nigeria | 3/15/2009 | Semkin | Founding | |
| 03/16 | Cloverbloom Farm Started | 3/16/1916 | Nelson | Founding Date | |
| 03/17 | St. Patrick's Day | 3/17/2012 | Calendar | Christian Holiday | Always March 17th |
| 03/20 | Spring Begins | 3/20/2012 | Calendar | Season | http://en.wikipedia.org/wiki/Equinox |
| 03/24 | Block Buster | 3/24/1991 | Spidle | LH Birthday | |
| 03/24 | Gibralter | 3/24/1992 | Snyder | LH Birthday | |
| 03/25 | Marathon | 3/25/2006 | Snyder | LH Birthday | |
| 03/25 | Mile Marker | 3/25/2002 | Snyder | LH Birthday | |
| 03/26 | Meshach | 3/26/1992 | Mathias | Birthday | |
| 03/28 | Final Edition | 3/28/1999 | Semkin | LH Birthday | |
| 03/29 | Austin Michel | 3/29/2007 | Mathias | Birthday | |
| 03/29 | Super Bowl | 3/29/1996 | DCCI | LH Birthday | |
| 03/30 | BH Bubba | 3/30/2006 | Semkin | LH Birthday | |
| 03/30 | Juma | 3/30/2007 | DCCI | LH Birthday | |
| 03/31 | Over Kill | 3/31/2003 | DCCI | LH Birthday | |
| 04/01 | April Fools Day | 4/1/2012 | Calendar | Minor Holiday | Same day every year |
| 04/01 | Palm Sunday | 4/1/2012 | Calendar | Christian | http://www.holidays.net/easter/eadates.htm |
| 04/02 | King | 4/2/1981 | DCCI | LH Birthday | |
| 04/02 | Winsome | 4/2/2003 | Mathias | LH Birthday | |
| 04/03 | Senator | 4/30/1986 | DCCI | LH Birthday | |
| 04/03 | Shadow Z | 4/3/2002 | Brown | LH Birthday | |
| 04/04 | Josephus | 4/4/1998 | Callan | LH Birthday | |
| 04/04 | Super Up | 4/4/2004 | Semkin | LH Birthday | |
| 04/06 | Good Friday | 4/6/2012 | Calendar | Christian | http://www.holidays.net/easter/eadates.htm |
| 04/07 | First Day of Passover | 4/7/2012 | Calendar | Jewish Holiday | http://www.timeanddate.com/holidays/us/first-day-of-passover |
| 04/08 | Easter Sunday | 4/8/2012 | Calendar | Christian | http://www.holidays.net/easter/eadates.htm |
| 04/08 | Victory Lap | 4/8/2002 | DCCI | LH Birthday | |
| 04/09 | Vanizm | 4/9/2007 | McIntyre | LH Birthday | |
| 04/10 | JG "Jack Phillips" | 4/10/1908 | Calendar | Famous Birthday | |
| 04/10 | Sir Creston | 4/10/2000 | Snyder | LH Birthday | |
| 04/11 | Winchester | 4/11/1999 | DCCI | LH Birthday | |
| 04/12 | Drag Iron | 4/12/2007 | DCCI | LH Birthday | |
| 04/17 | CB Blue Chip | 4/17/1999 | Nelson | LH Birthday | |
| 04/17 | Tempter | 4/17/2005 | DCCI | LH Birthday | |
| 04/22 | Earth Day | 4/22/2012 | Calendar | Minor Holiday | Same day every year - http://www.arborday.org/arborday/index.cfm |
| 04/24 | Arbor Day | 4/24/2012 | Calendar | Minor Holiday | Same Day Every year |
| 04/26 | Joe The Plumber | 4/26/2008 | Lindy | LH Birthday | |
| 04/28 | Draggy Trip | 4/28/2009 | Lindy | LH Birthday | |
| 04/29 | Fiesta Sale | 4/29/2011 | McCombs | Sale | RM Annual Baby Doll Heifer Sale & Party on Friday |
| 04/30 | Fiesta Sale | 4/30/2011 | McCombs | Sale | Fiesta Sale on Saturday morning at 10 am |
| 05/01 | May Day | 5/1/2012 | Calendar | Minor Holiday | First Day of May |
| 05/03 | National Day of Prayer | 5/3/2012 | Calendar | Christian | First thurs in may? http://nationaldayofprayer.org/ |
| 05/03 | Victoria Rose | 5/3/2001 | Spidle | Birthday | |
| 05/04 | Megan Lynn | 5/4/1998 | Snyder | LH Birthday | |
| 05/04 | Sophia Frevert | 5/4/2002 | Mathias | LH Birthday | |
| 05/05 | Cinco de Mayo | 5/5/2012 | Calendar | Minor Holiday | Same day every year |
| 05/05 | Shadow Jubilee | 5/5/2000 | DCCI | LH Birthday | |
| 05/08 | VE Day | 5/8/1945 | Calendar | Minor Holiday | Same Day every year. |
| 05/09 | Unlethal | 5/9/1999 | Callan | LH Birthday | |
| 05/10 | Vanizm Partnership Establshed with White Rock Ranch & McIntyre Ranches | 5/10/2011 | McIntyre | Founding | |
| 05/12 | Unchecked | 5/12/1995 | Snyder | LH Birthday | |
| 05/13 | Mother's Day | 5/13/2012 | Calendar | Minor Holiday | 2nd sunday in May |
| 05/15 | Desperado Hope | 5/15/1998 | Callan | LH Birthday | |
| 05/16 | Darlene Nelson | 5/16/2012 | Nelson | Birthday | |
| 05/17 | Coach's Favorite Star | 5/17/2008 | Lindy | LH Birthday | |
| 05/17 | Super Biz | 5/17/2006 | Callan | LH Birthday | |
| 05/19 | Armed Forces Day | 5/19/2012 | Calendar | Minor Holiday | 3rd saturday in May |
| 05/20 | Dickinson bought first Longhorns | 5/20/1967 | DCCI | Founding Date | |
| 05/21 | Zhimoof | 5/21/2005 | Callan | LH Birthday | |
| 05/22 | Shy N' Dry | 5/22/2008 | Lindy | LH Birthday | |
| 05/26 | John Wayne | 5/26/1907 | Calendar | Famous Birthday | |
| 05/28 | Graves Peeler | 5/28/1886 | Calendar | Famous Birthday | |
| 05/28 | Memorial Day (observed) | 5/28/2012 | Calendar | Federal Holiday | last monday in May |
| 05/29 | Super Suspect | 5/29/2004 | Brown | LH Birthday | |
| 05/30 | Memorial Day | 5/30/2012 | Calendar | Major Holiday | Same day every year |
| 06/01 | Shockwave | 6/1/1994 | Semkin | LH Birthday | |
| 06/05 | Hopalong Cassidy | 6/5/1895 | Calendar | Famous Birthday | |
| 06/06 | The Shadow | 6/6/1991 | DCCI | LH Birthday | |
| 06/11 | Cowboyman | 6/11/1995 | Semkin | LH Birthday | |
| 06/14 | Flag Day | 6/14/2012 | Calendar | Minor Holiday | Same day every year |
| 06/17 | Father's Day | 6/17/2012 | Calendar | Minor Holiday | 3rd sunday in June |
| 06/21 | Summer Begins | 6/21/2012 | Calendar | Season | http://en.wikipedia.org/wiki/Equinox |
| 06/22 | Midsommar Day | 6/22/2012 | Nelson | Holiday | Friday and Saturday between 19 June and 26 June. |
| 07/04 | Independance Day | 7/4/2012 | Calendar | Federal Holiday | Same day every year http://www.opm.gov/Operating_Status_Schedules/fedhol/2010.asp |
| 07/05 | Charlene Semkin bought first longhorns | 7/5/1975 | Semkin | Founding | |
| 07/06 | Frevert Triplets - Eden, Kale, Collin | 7/6/2005 | Mathias | LH Birthday | |
| 07/16 | Heart of the Rockies MSTLA show | 7/16/2011 | Nelson | Event | |
| 07/16 | MP "Chico" Wright III | 7/16/1930 | Calendar | Famous Birthday | |
| 07/20 | G-Man | 7/20/1986 | Glendenning | LH Birthday | |
| 07/21 | Heavy Hitter | 7/21/1993 | Glendenning | LH Birthday | |
| 07/22 | Parents Day | 7/22/2012 | Calendar | Minor Holiday | 4th Sunday in July |
| 08/01 | Superman | 8/1/1991 | Semkin | LH Birthday | |
| 08/05 | Friendship Day | 8/5/2012 | Calendar | Minor Holiday | first Sunday in August |
| 08/10 | Slick Rick 88 | 8/10/2008 | McIntyre | LH Birthday | |
| 08/11 | Davey Crockett | 8/11/1786 | Calendar | Famous Birthday | |
| 08/13 | Nelson's 52nd Wedding Anniversary | 8/13/2012 | Nelson | Anniversary | |
| 08/13 | Rocky Mountain Select Sale | 8/13/2011 | Calendar | Event | Aug 12-13 2011 per Stan |
| 09/02 | VJ Day | 9/2/1945 | Calendar | Minor Holiday | http://en.wikipedia.org/wiki/VJ_Day |
| 09/03 | Labor Day | 9/3/2012 | Calendar | Federal Holiday | 1st monday in Sept |
| 09/09 | Grandparents Day | 9/9/2012 | Calendar | Minor Holiday | First sunday after Labor day |
| 09/10 | Mo Kan Sale | 9/10/2011 | Calendar | Event | Second Saturdays in September every year. |
| 09/15 | Charlene Semkin starts first longhorns in New Zealand | 9/15/1991 | Semkin | Founding | |
| 09/15 | Red Hawk Cattle Co. Founding | 9/15/2008 | Lindy | Founding | |
| 09/17 | Rosh Hashanah | 9/17/2012 | Calendar | Jewish Holiday | http://www.jewfaq.org/holiday2.htm |
| 09/18 | J. Frank Dobie | 9/18/1888 | Calendar | Famous Birthday | |
| 09/18 | Rosh Hashanah | 9/18/2012 | Calendar | Jewish Holiday | http://www.jewfaq.org/holiday2.htm |
| 09/22 | Autumn Begins | 9/23/2012 | Calendar | Season | http://en.wikipedia.org/wiki/Equinox |
| 09/26 | Yom Kippur | 9/26/2012 | Calendar | Jewish Holiday | http://www.jewfaq.org/holiday4.htm |
| 09/28 | Rio Rojo Longhorns starts program | 9/28/2009 | Rio Rojo | Founding | |
| 09/29 | Gene Autry | 9/29/1907 | Calendar | Famous Birthday | |
| 10/08 | Columbus Day | 10/8/2012 | Calendar | Federal Holiday | 2nd monday in Oct |
| 10/11 | BHF Chance | 10/11/1998 | Callan | LH Birthday | |
| 10/15 | Judge Isaac C Parker | 10/15/1838 | Calendar | Famous Birthday | http://en.wikipedia.org/wiki/Isaac_Parker |
| 10/17 | Charline McCombs | 10/17/1100 | McCombs | Birthday | |
| 10/19 | Red McCombs | 10/19/1928 | McCombs | Birthday | |
| 10/31 | Halloween | 10/31/2012 | Calendar | Minor Holiday | |
| 10/31 | Spur of the Moment | 10/31/1999 | Callan | LH Birthday | |
| 11/01 | All Saints Day | 11/1/2012 | Calendar | Catholic Holiday | Same Day Every Year |
| 11/04 | Daylight Saving Ends | 11/4/2012 | Calendar | Season | Ends on First Sunday in November |
| 11/05 | Megan Michel | 11/5/2005 | Mathias | LH Birthday | |
| 11/05 | Red Hawk Cattle Co. Grass fed beef sales launched | 11/5/2010 | Lindy | Founding | |
| 11/05 | Roy Rogers | 11/5/1911 | Calendar | Famous Birthday | |
| 11/06 | Election Day | 11/6/2012 | Calendar | Minor Holiday | first tuesday after first monday in Nov |
| 11/07 | D.J. McKinnon | 11/7/2006 | Spidle | Birthday | |
| 11/11 | Veteran's Day | 11/11/2012 | Calendar | Holiday | Same Day Every year |
| 11/12 | Texas Ranger JP | 11/24/1968 | Calendar | LH Birthday | |
| 11/17 | Superior | 11/17/1979 | Calendar | LH Birthday | |
| 11/18 | Bible Sunday | 11/21/2012 | Calendar | Christian | Sunday before American Thanksgiving |
| 11/18 | Overwhelmer | 11/18/1982 | Calendar | LH Birthday | |
| 11/22 | Thanksgiving Day | 11/22/2012 | Calendar | Federal Holiday | Fourth Thursday in November. |
| 11/27 | Agee M. | 11/27/2003 | Spidle | Birthday | |
| 12/02 | Advent | 12/2/2012 | Calendar | Christian | http://catholicism.about.com/od/advent/f/Advent_Start.htm |
| 12/07 | Pearl Harbor Day | 12/7/1941 | Calendar | Minor Holiday | |
| 12/08 | Hanukkah Begins | 12/8/2012 | Calendar | Jewish Holiday | http://www.chabad.org/holidays/chanukah/article_cdo/aid/671899/jewish/When-is-Chanukah-in-2010-2011-2012-2013-2014-and-2015.htm |
| 12/14 | Red Hawk Ruger | 12/14/2010 | Lindy | LH Birthday | |
| 12/16 | Hanukkah Ends | 12/8/2012 | Calendar | Jewish Holiday | http://www.chabad.org/holidays/chanukah/article_cdo/aid/671899/jewish/When-is-Chanukah-in-2010-2011-2012-2013-2014-and-2015.htm |
| 12/21 | End of the World Mayan Calendar | 12/21/2012 | Calendar | Mayan End | |
| 12/22 | Winter Begins | 12/22/2012 | Calendar | Season | |
| 12/25 | Christmas Day | 12/25/2010 | Calendar | Federal Holiday | Same day every year |