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April 28
ON THIS DAY

April 28

5 moments across history

2001

First Space Tourist: Dennis Tito Launches to the ISS

First Space Tourist: Dennis Tito Launches to the ISS

First Space Tourist

First Space Tourist: Dennis Tito Launches to the ISS — detail

Year: 2001

Driven by a cash-strapped Russian space program seeking alternative funding and despite NASA's initial safety objections, Tito's flight broke the government monopoly on space travel, proving private citizens could safely visit orbit and paving the way for the commercial space industry.

1987

Take Our Daughters to Work Day Launches

Take Our Daughters to Work Day Launches

Take Our Daughters to Work Day Launches

Take Our Daughters to Work Day Launches — detail

Year: 1987

Created against the backdrop of 1980s workplace inequalities and "glass ceilings," the initiative aimed to combat a severe drop in adolescent girls' self-esteem by challenging pervasive gender stereotypes. It highlighted unique societal barriers for young women until evolving into the gender-inclusive "Take Our Daughters and Sons to Work Day" in 2003.

1952

Treaty of San Francisco Takes Effect

Treaty of San Francisco Takes Effect

Treaty of San Francisco Takes Effect

Treaty of San Francisco Takes Effect — detail

Year: 1952

Driven by Cold War containment, the U.S. shifted from punishing to allying with Japan to establish a strategic anti-communist bulwark in the Asia-Pacific. While the treaty enabled Japan's post-war economic miracle and shaped its modern pacifist identity, a concurrent U.S.-Japan Security Treaty allowed American military bases to remain on its soil. Cold War fractures led to a Soviet boycott and the exclusion of China, leaving unresolved territorial and diplomatic issues that continue to strain regional relations today.

1947

Thor Heyerdahl's Kon-Tiki Expedition

Thor Heyerdahl's Kon-Tiki Expedition

Thor Heyerdahl's Kon-Tiki Expedition

Thor Heyerdahl's Kon-Tiki Expedition — detail

Year: 1947

Departing just two years after WWII, the *Kon-Tiki* successfully crossed 4,300 miles of the Pacific Ocean in 101 days, proving that ancient maritime technology could survive the journey. While subsequent genetic and archaeological evidence firmly established that Polynesia was settled from Southeast Asia rather than South America, Heyerdahl's daring voyage revolutionized experimental archaeology by challenging academic assumptions about ancient seafaring capabilities, becoming a global cultural phenomenon through its bestselling book and Academy Award-winning documentary.