May is 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.
May is 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.
May is 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.
- Beltane, an ancient Celtic festival celebrated on May Day, signifying the beginning of summer
MAY 2 - MAY 3 (sundown to sundown)
- Eid al-Fitr, the first day of the Islamic month of Shawwal, marking the end of Ramadan. Many Muslims attend communal prayers, listen to a khutuba (sermon), and give Zakat al-Fitr (charity in the form of food) during Eid al-Fitr
- Feasts of Saints Philip and James, a Roman rite feast day held on the anniversary of the dedication of the Church to Saints Phillip and James in Rome
- Cinco de Mayo, a Mexican holiday commemorating the Mexican Army’s 1862 victory over France at the Battle of Puebla during the Franco-Mexican War (1861–1867). This day celebrates Mexican culture and heritage with a variety of festivities, including parades and mariachi music performances.
MAY 5 - MAY 6 (sundown to sundown)
- Yom Ha’Atzmaut, national Independence Day in Israel
- National Day of Prayer, a day of observance in the United States when people are asked to “turn to God in prayer and meditation”
- Buddha Day (Vesak or Visakha Puja), a Buddhist festival that marks Gautama Buddha’s birth, enlightenment, and death. It falls on the day of the full moon in May and is a gazetted holiday in India.
- International Day Against Homophobia, Transphobia, and Biphobia, a global celebration of sexual orientation and gender diversities
MAY 18-19 (sundown to sundown)
- Lag BaOmer, a Jewish holiday marking the day of hillula of Rabbi Shimon bar Yochai
- World Day for Cultural Diversity for Dialogue and Development, a day set aside by the United Nations as an opportunity to deepen our understanding of the values of cultural diversity and to learn to live together in harmony
MAY 23-24 (sundown to sundown)
- Declaration of the Báb, the day of declaration of the Báb, the forerunner of Bahá’u’lláh, the founder of the Bahá’í faith
- Ascension of Jesus or Ascension Day, celebrated as the ascension of Christ from Earth in the presence of God within most of the Christian faith
- Ascension of Bahá’u’lláh, commemorates the ascension of Bahá’u’lláh, the founder of the Bahá’í faith
- Memorial Day in the United States, a federal holiday established to honor military veterans who died in wars fought by US forces