July 25th

2008
California became the first state to ban trans fats from restaurant food.
Trans fat
2007
India gets its first female president. Pratibha Patil, a politician stayed in office as the head of state of the South Asian country for 5 years.
Pratibha Patil
2000
Texas Gov. George W. Bush selected Dick Cheney to be his running mate on the Republican presidential ticket.
Dick Cheney
1997
Scientists announce the first human stem cells to be cultured in a laboratory using tissue taken from aborted human embryos.
Human cloning
1994
Israeli Prime Minister Yitzhak Rabin and Jordan's King Hussein signed a declaration at the White House ending their countries' 46-year state of war.
Israel–Jordan peace treaty
1984
Svetlana Savitskaya becomes the First Woman to Walk in Space. The Soviet cosmonaut was part of the Soyuz T-12 mission, which docked at the Salyut 7 Space station. As part of the mission, she spent 3.5 hours in space testing tools. Savitskaya was also the second woman to go into space and the first to go to space twice.
Svetlana Savitskaya
1978
World's first test tube baby is born. Louise Joy Brown was the first person to be conceived using in-vitro fertilization or IVF technology, pioneered by doctors Patrick Steptoe and Robert Edwards.
Louise Brown
1976
The famous Face on Mars photo is taken. Viking 1, the first space probe to successfully land on Mars took the famous photo of the Cydonia region on the Red Planet.
Cydonia (region of Mars)
1975
The musical 'A Chorus Line' opened on Broadway.
A Chorus Line
1965
Bob Dylan shocked his fans at the Newport Folk Festival by playing electric guitar.
Electric Dylan controversy
1956
Tunisia gains its independence from France. The northernmost African country, became a French protectorate in 1881, under the Treaty of Bardo. The path to independence in the country was marred by civil unrest and conflict and was led by Habib Bourguiba, who became the first president of the independent country.
Tunisian independence
1952
Puerto Rico became a self-governing commonwealth of the United States.
Puerto Rico
1946
The United States tested the first underwater atomic bomb at Bikini Atoll.
Operation Crossroads
1944
World War II: Operation Spring - one of Canada's bloodiest days, 18,444 casualties and 5,021 killed.
Portal:War/Selected anniversaries/July
1943
Benito Mussolini dismissed as Italian Premier and arrested on the authority of King Victor Emmanuel III.
Benito Mussolini
1868
Congress passed an act creating the Wyoming Territory.
Wyoming Territory
1814
English engineer George Stephenson introduces the 1st steam locomotive.
George Stephenson
1593
France's King Henry IV converted from Protestantism to Roman Catholicism.
Henry IV of France
306
Constantine I is proclaimed Roman Emperor by his troops.
Constantine the Great