Nettie Stevens
Geneticist who discovered the X and Y chromosomes.
National days, ongoing national weeks and months, and global observances for June 25, 2026. Plus historical events and birthdays.

June 25, 2026 celebrates National Leon Day, plus 4 more. National Leon Day marks June 25 as six months away from Christmas day. Leon, spelled backward is Noel, marking the day crafters begin planning their homemade gifts and decorations for the holiday season. It can also be a day for those who miss the winter holidays to have a mini-winter celebration in June.
Read the full story →The last Thursday in June is reserved for enjoying a summertime favorite on National Bomb Pop Day. The rocket shape and vivid colors of a Bomb Pop reminds us of fireworks, preparing you for the excitement of the upcoming 4th of July holiday.
Read the full story →National Catfish Day on June 25 celebrates the value of farm-raised catfish. Dive in with us as we explore some interesting facts you may not have known about catfish.
Read the full story →National Strawberry Parfait Day on June 25 comes around once a year during the perfect time - peak strawberry season. This food holiday offers a terrific opportunity to explore your farmer's markets for fresh-picked strawberries.
Read the full story →Each year during the last Thursday of June, people across the nation observe National Handshake Day. Of all the various forms of greeting, the handshake is perhaps one of the most ancient and the most honorable.
Read the full story →People born on June 25
Geneticist who discovered the X and Y chromosomes.
The first published female cartoonist in the U.S. who rose to fame rose for creating the popular comic strip characters, Kewpies.
Children's author and illustrator. He wrote The Very Hungry Caterpillar, The Grouchy Ladybug, and The Mixed-Up Chameleon.
Author, playwright, and activist who co-founded the Gay Men's Health Crisis organization.
Singer, songwriter, musician, and author who rose to fame with his 1970s hit single That's the Way I've Always Heard It Should Be and You're So Vain.
Events that occurred on June 25 throughout history
Governor Winthrop introduces the fork to American dining. However, Puritan colonists rejected the two-pronged utensil because they felt it was associated with Satan's pitchfork.
Virginia becomes the tenth state to join the Union. The state was the largest of the 13 colonies and creating a federal government was pivotable to move forward with creating the Bill of Rights.
Lucien Smith patents the first barbed wire.
President Andrew Johnson signs a law establishing an 8-hour workday for government workers. President Johnson initially vetoed the law, but Congress overrode the veto, causing the President to sign.
Lieutenant Colonel George Armstrong Custer and 7th Cavalry Regiment are wiped out by the 5,000 Sioux (Lakota, Cheyenne and Arapaho, led by Sitting Bull and Crazy Horse). The battle became known as "Custer's last Stand".
The U.S. Congress passes the Mann Act, which criminalizes the transportation of women or girls across state lines or international borders for prostitution, debauchery, or "any other immoral purpose".
American Civil War veterans begin arriving at the Great Reunion of 1913, for the 50th anniversary of the Battle of Gettysburg. Nearly 53,407 veterans from 46 of the then-48 states gathered to celebrate reconciliation after the Civil War..
President Herbert Hoover signed a proclamation declaring the Colorado River Compact effective. The legislation authorized construction of the Boulder Dam (Hoover Dam).
President Roosevelt signs the National Firearms Act into law. The Act was originally created to require gun owners to register firearms to determine the excise tax. It also was an indirect step to expand the federal government's reach into criminal justice to crack down on rampant bootlegging, kidnappings, and gang violence.
President Harry S. Truman signs the Displaced Persons Act, allowing World War II refugees to immigrate to the United States above quota restrictions. Immigrants had to secure employment that wouldn't displace an American worker, have suitable housing, and provide a resident sponsor before arrival.
The rainbow flag representing gay pride is flown for the first time during the San Francisco Gay Freedom Day Parade.
Longer-running observances that include this date.
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