The festival of  Shavuot (help·info) (or  Shavuos (help·info), in Ashkenazi usage; Shabhuʿoth in Classical and Mizrahi Hebrew Hebrew: שבועות‎, lit. "Weeks") is a Jewish holiday that occurs on the sixth day of the Hebrew month of Sivan (late May or early June).

Shavuot commemorates the anniversary of the day God gave the Torah to the entire Israelite nation assembled at Mount Sinai, although the association between the giving of the Torah (Matan Torah) and Shavuot is not explicit in the Biblical text. The holiday is one of the Shalosh Regalim, the three Biblical pilgrimage festivals. It marks the conclusion of the Counting of the Omer.

The Ascension of Jesus (anglicized from the Vulgate Latin Acts 1:9-11 section title: Ascensio Iesu) is the Christian teaching found in the New Testament that the resurrected Jesus was taken up to heaven in his resurrected body,^{[Acts 1:9-11]} in the presence of eleven of his apostles, occurring 40 days after the resurrection. In the biblical narrative, an angel tells the watching disciples that Jesus' second coming will take place in the same manner as his ascension.^[1]

The Ascension of Jesus is professed in the Nicene Creed and in the Apostles' Creed. The Ascension implies Jesus' humanity being taken into Heaven.^[2] The Feast of the Ascension, celebrated on the 40th day of Easter (always a Thursday), is one of the chief feasts of the Christian year.^[2] The feast dates back at least to the later 4th century, as is widely attested.^[2]

Several nations observe or have observed a Navy Day to recognize their navy.

The Argentine Navy day is celebrated on May 17, anniversary of the victory achieved in 1814 in the Battle of Montevideo.^[1]

The Mecklenburg Declaration of Independence is allegedly the first declaration of independence made in the Thirteen Colonies during the American Revolution. It was supposedly signed on May 20, 1775, at Charlotte, North Carolina, by a committee of citizens of Mecklenburg County, who declared independence from Great Britain after hearing of the battle of Lexington. If the story is true, the Mecklenburg Declaration preceded the United States Declaration of Independence by more than a year. The authenticity of the Mecklenburg Declaration has been disputed since it was first published in 1819, forty-four years after it was reputedly written. There is no conclusive evidence to confirm the original document's existence, and no reference to it has been found in extant newspapers from 1775.

Many professional historians have maintained that the Mecklenburg Declaration of Independence is an inaccurate rendering of an authentic document known as the Mecklenburg Resolves. The Mecklenburg Resolves were a set of radical resolutions passed on May 31, 1775, that fell short of an actual declaration of independence. Although published in newspapers in 1775, the text of the Mecklenburg Resolves was lost after the American Revolution and not rediscovered until 1838. Historians believe that the Mecklenburg Declaration was written in 1800 in an attempt to recreate the Mecklenburg Resolves from memory. According to this theory, the author of the Mecklenburg Declaration mistakenly believed that the Resolves had been a declaration of independence, and so he recreated the Resolves with language borrowed from the United States Declaration of Independence. Defenders of the Mecklenburg Declaration have argued that both the Mecklenburg Declaration and the Mecklenburg Resolves are authentic.

Everybody Draw Mohammed Day was an event held on May 20, 2010 in support of free speech and freedom of artistic expression of those threatened by violence for drawing representations of the Islamic Prophet Muhammad. It began as a protest against censorship of an American television show, South Park, "201" by its distributor, Comedy Central, in response to death threats against some of those responsible for two segments broadcast in April 2010. Observance of the day began with a drawing posted on the Internet on April 20, 2010, accompanied by text suggesting that "everybody" create a drawing representing Muhammad, on May 20, 2010, as a protest against efforts to limit freedom of speech.

U.S. cartoonist Molly Norris of Seattle, Washington, created the artwork in reaction to Internet death threats that had been made against cartoonists Trey Parker and Matt Stone for depicting Muhammad in an episode of South Park. Depictions of Muhammad are explicitly forbidden by a few hadiths (sayings of and about Muhammad), though not by the Qur'an.^[1] Postings on RevolutionMuslim.com (under the pen name Abu Talha al-Amrikee; later identified as Zachary Adam Chesser) had said that Parker and Stone could wind up like Theo van Gogh, a Dutch filmmaker who was shot to death.^{[citation needed]}

Mary Jane McLeod Bethune (July 10, 1875 – May 18, 1955) was an American educator and civil rights leader best known for starting a school for African American students in Daytona Beach, Florida, that eventually became Bethune-Cookman University and for being an advisor to President Franklin D. Roosevelt.

Born in South Carolina to parents who had been slaves and having to work in fields at age five, she took an early interest in her own education. With the help of benefactors, Bethune attended college hoping to become a missionary in Africa. When that did not materialize, she started a school for African American girls in Daytona Beach. From six students it grew and merged with an institute for African American boys and eventually became the Bethune-Cookman School. Its quality far surpassed the standards of education for African American students, and rivaled those of schools for white students. Bethune worked tirelessly to ensure funding for the school, and used it as a showcase for tourists and donors, to exhibit what educated African-Americans could do. She was president of the college from 1923 to 1942 and 1946 to 1947, one of the few women in the world who served as a college president at that time.