May 15 has, surprisingly often, brought moments to world history that reverberated like a thunderclap through politics, culture and society. Some events had immediate effects, others only decades later. And some shape everyday life to this day — often without people even giving it much thought.
In France, May 15 marks several symbolic dates.
In 1681 the famous Canal du Midi officially opened its waterways. The canal linked the Atlantic and the Mediterranean and was regarded at the time as a technical marvel of Europe. Thousands of workers toiled for years on locks, embankments and artificial channels. For the France of Louis XIV the project meant power, trade and prestige. Today, houseboats and holidaymakers chug along it — funny, really, how a gigantic commercial artery became a romantic place of longing.
Then came May 15, 1991.
After Michel Rocard’s resignation, President François Mitterrand appointed a woman as French prime minister for the first time: Édith Cresson. France liked to present itself as a land of enlightenment and equality — yet it took until the 1990s for a woman to rise to the head of government. Cresson was only briefly in office, but her appointment opened a symbolic door. Debates about women in leadership positions, equal opportunities and political power remain fiercely contested in France to this day.
And then, of course, May 1968.
On May 15 the French student and workers’ movement expanded dramatically. Factories were occupied, universities blockaded, workers showed solidarity with students. Paris suddenly looked like a political volcano on the verge of eruption. The protests targeted authorities, old moral codes and rigid social rules. President Charles de Gaulle came under massive pressure.
The consequences? Massive cultural changes. Looser social norms, new ideas of freedom, co-determination and individuality — much of it stems directly from that time. Without May 1968, France would probably look considerably more conservative today. Some historians even speak of a “second French Revolution.” Not that exaggerated.
Worldwide too, May 15 is full of notable events.
In 1525 the Battle of Frankenhausen ended in a crushing defeat for the rebellious peasants under Thomas Müntzer. The German Peasants’ War collapsed, thousands died. The princes ruthlessly demonstrated their power. Yet the desire for social justice never completely disappeared. Many ideas of later revolutions — from demands for participation to social rights — indirectly root back to these uprisings.
In 1863 the famous “Salon des Refusés” opened in Paris. It may sound awkward at first, but it fundamentally changed the art world. It displayed works rejected by the official art jury. Among the exhibited artists was Édouard Manet with his scandalous painting “Luncheon on the Grass.” The traditional art elite was outraged.
But out of that grew modern art.
In essence, the triumph of Impressionism and later the avant-garde began there. Without this cultural uprising many contemporary art forms might not exist. It’s remarkable that rejections often trigger the greatest creative spur.
In 1928 Mickey Mouse and Minnie Mouse appeared publicly for the first time. No one back then suspected that this would grow into one of the most powerful entertainment empires in the world. The Walt Disney Company still shapes films, theme parks, streaming services and pop culture. Millions of children grow up with these characters — and adults do too, though some would never admit it openly.
In 1948, immediately after the founding of Israel, the first Arab–Israeli war began. The conflict permanently altered the Middle East and remains one of the most complex political crises in the world. Borders, displacement, religion, power interests — for decades these factors have mixed into an explosive brew. For many Palestinians, May 15 is regarded as the “Nakba,” a catastrophe, because hundreds of thousands lost their homes. This historical wound remains deep in the region’s collective memory to this day.
In 1988 the Soviet Union began withdrawing its troops from Afghanistan. That slowly ended a war that bled Moscow economically and politically. Many historians see this as an important step toward the later collapse of the USSR. At the same time, power vacuums emerged in Afghanistan from which later radical groups arose. History rarely operates like a neatly ordered game of chess — more like a chain reaction with surprising side effects.
And something curious:
In 1940 the American company DuPont brought nylon stockings to market for the first time. It may sound banal, but it sparked a huge consumer craze. Women queued for hours and shops were quickly sold out. During World War II the materials were later needed for parachutes and military technology. A small fashion item suddenly tells a story about war, industry and social change. It’s details like these that sometimes bring history vividly to life.
May 15 therefore shows quite impressively how closely politics, technology, culture and everyday life are intertwined. A canal changes trade routes. Student protests change mentalities. An art exhibition changes perceptions of beauty. And even a cartoon mouse alters global pop culture.
Who would have thought that a single date could leave so many traces in the world?