- January 1: New Year’s Day, the first day of the year according to the modern Gregorian calendar, celebrated within most Western countries.
- January 1: Emanicipation Proclamation, freed the slaves.
Black History Month in the United States and Canada. Since 1976, the month has been designated to remember the contributions of people of the African diaspora.
- February 1: National Freedom Day, which celebrates the signing of the 13th Amendment that abolished slavery in 1865.
- February 1: Imbolc, a Gaelic traditional festival marking the beginning of spring.
- February 1: St. Brigid of Kildare, feast day for St. Brigid celebrated by some Christian denominations.
- Women’s History Month. Started in 1987, Women’s History Month recognizes all women for their valuable contributions to history and society.
- National Developmental Disabilities Awareness Month, which was established to increase awareness and understanding of issues affecting people with intellectual and developmental disabilities.
- National Multiple Sclerosis Education and Awareness Month. It was established to raise public awareness of the autoimmune disease that affects the brain and spinal cord and assist those with multiple sclerosis in making informed decisions about their health care.
- Asian Pacific American Heritage Month in the United States. The month of May was chosen to commemorate the immigration of the first Japanese to the United States on May 7, 1843, and to mark the anniversary of the completion of the transcontinental railroad on May 10, 1869. The majority of the workers who laid the tracks on the project were Chinese immigrants.
- Older Americans Month, established in 1963 to honor the legacies and contributions of older Americans and to support them as they enter their next stage of life. May is Jewish American Heritage Month, which recognizes the diverse contributions of the Jewish people to American culture.
- Mental Health Awareness Month (or Mental Health Month), which aims to raise awareness and educate the public about mental illnesses and reduce the stigma that surrounds mental illnesses.
- Jewish American Heritage Month, an annual recognition and celebration of Jewish American achievements in and contributions to the United States of America during the month of May. President George W. Bush first proclaimed the month on April 20, 2006, as a result of cooperation with Sen. Arlen Specter, as well as the Jewish Museum of Florida and the South Florida Jewish Community.
- Caribbean American Heritage Month, named a June diversity observance by presidential proclamation in 2006. It aims to promote the rich culture and heritage of the Caribbean American people.
- Lesbian, Gay, Bisexual, and Transgender Pride Month, established to recognize the impact that gay, lesbian, bisexual and transgender individuals have had on the world. LGBT groups celebrate this special time with pride parades, picnics, parties, memorials for those lost to hate crimes and HIV/AIDS, and other group gatherings. The last Sunday in June is Gay Pride Day.
- Last Sunday in June: Lesbian, Gay, Bisexual, Transgender (LGBT) Pride Day in the United States. It celebrates the Stonewall Riots on June 28, 1969.
- July 1: Canada Day, or Fête du Canada, is a Canadian federal holiday that celebrates the 1867 enactment of the Constitution Act, which established the three former British colonies of Canada, Nova Scotia and New Brunswick as a united nation called Canada.
- July 4: Independence Day (also known as the Fourth of July), a United States federal holiday that celebrates the adoption of the Declaration of Independence on July 4, 1776. The original 13 American colonies declared independence from Britain and established themselves as a new nation known as the United States of America.
- Asalha Puja, or Dharma Day, is a celebration of Buddha’s first teachings.
- August 1: Lammas, a festival to mark the annual wheat harvest within some English-speaking countries in the Northern Hemisphere.
- August 1: Lughnasadh, a Gaelic festival marking the beginning of the harvest season.
Hispanic Heritage Month is observed from September 15 to October 15. This month corresponds with Mexican Independence Day, which is celebrated on September 16, and recognizes the revolution in 1810 that ended Spanish dictatorship.
- National Native American Heritage Month, which celebrates the history and contributions of Native Americans.
- November 11: Veterans' Day: a holiday honoring military veterans. The date is also celebrated as Armistice Day, or Remembrance Day, in other parts of the world and commemorates the ending of World War I in 1918.
- World AIDS Day, commemorating those who have died of AIDS, and to acknowledge the need for a continued commitment to all those affected by the HIV/AIDS epidemic.<
- Dec 21st: Yule Winter Solstice, celebrated by Pagans and Wiccans. The shortest day of the year represents a celebration focusing on rebirth, renewal and new beginnings as the sun makes its way back to the Earth. A solstice is an astronomical event that happens twice each year when the sun reaches its highest position in the sky.
- Dec 25th: Christmas Day, the day that many Christians associate with Jesus’ birth.
- December 31: Watch Night, a day for Christians to review the year that has passed, make confessions, and then prepare for the year ahead by praying and resolving.