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music
Claude Joseph Rouget de Lisle and the Marseillaise

Claude Joseph Rouget de Lisle and the Marseillaise

Harald Sack
On April 25, 1792, French army officier Claude Joseph Rouget de Lisle during the French Revolution composes the ‘Chant de guerre pour l’armée du Rhin‘ for the declaration of war against Austria. Under the name ‘La Marseillaise‘ his song later becomes the national anthem of France. Everybody knows the French National Anthem I’m pretty sure that almost everybody knows the French national anthem, the so-called Marseillaise, simply because of its numerous references throughout music…
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photography
Recovering the Lost Lunar Photographs

Recovering the Lost Lunar Photographs

Harald Sack
Maybe you remember that we had an article on the very first image of the Earth taken from abroad?[1] It was an image taken in 1966 by one of the Lunar Orbiter space probes, which had the task of taking closeup pictures of the lunar surface to find a well suited landing spot for the upcoming Apollo Moon missions. Well, you might wonder, how these photographs came back to Earth. Well, the…
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engineering
Laurens Hammond and the Hammond Organ

Laurens Hammond and the Hammond Organ

Tabea Tietz
On April 24, 1934, American engineer and inventor Laurens Hammond filed US Patent 1,956,350 for an “electrical musical instrument“, his famous eponymous electric organ with the unique ‘Hammond sound’. The Hammond Clock Company Laurens was born in Illinois, USA, but moved to France after his father took his life. In  Europe, Hammond began to design some of his earliest inventions. By the age of 14, the boy had already designed systems for automatic…
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mathematics
Walter Pitts and the Mathematical Model of a Neural Network

Walter Pitts and the Mathematical Model of a Neural Network

Harald Sack
On April 23, 1923, American logician Walter Pitts, Jr. was born. Pitts worked in the field of computational neuroscience. He proposed landmark theoretical formulations of neural activity and generative processes that influenced diverse fields such as cognitive sciences and psychology, philosophy, neurosciences, computer science, artificial neural networks, cybernetics and artificial intelligence. Moreover, he proposed the first mathematical model of a neural network. The unit of this model, a simple formalized neuron, is…
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politics
Encore un Moment – The Life of Madame Du Barry

Encore un Moment – The Life of Madame Du Barry

Tabea Tietz
On April 22, 1769, Jeanne Bécu, comtesse du Barry, better known as Madame du Barry, was introduced at the French court. Originally being only a seamstress, Madame du Barry should become Maîtresse-en-titre of Louis XV of France and the most powerful woman in France. From Street Seller to Courtesan Madame du Barry was born in Lorraine, France and had to support herself financially at the age of 15 or 16. It is…
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computer games
The Triumph of the Game Boy

The Triumph of the Game Boy

Tabea Tietz
On April 21, 1989, Nintendo presented the 8-bit handheld video game device called Game Boy, the first handheld console. The Game Boy and its successor, the Game Boy Color, have been tremendous successful by combined selling 118.69 million units worldwide. Upon its release in the United States, it sold its entire shipment of one million units within weeks. The device became a cultural icon of the early 1990s. Production of the device continued…
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biology
Royal Botanist Charles Plumier

Royal Botanist Charles Plumier

Tabea Tietz
On April 20, 1646, French botanist Charles Plumier was born. He is considered one of the most important of the botanical explorers of his time. He made three botanizing expeditions to the West Indies, which resulted in a massive work Nova Plantarum Americanarum Genera (1703–04) and was appointed botanist to king Louis XIV of France. A Friar and Botanist Charles Plumier was born in Marseille and entered the order of the Minims,…
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literature
August Wilhelm Iffland and the Iffland Ring

August Wilhelm Iffland and the Iffland Ring

Harald Sack
On April 19, 1759, German actor and dramatic author August Wilhelm Iffland was born. He was the most important actor of his age and is best remembered for playing the main part of Franz Moor in Friedrich Schiller‘s ‘The Robbers‘.[6] And there is this ring, the Iffland-Ring, which bears Iffland‘s likeness, and is borne by the most important German-speaking actor, as decided by his predecessor. When I first heard the story of the…
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history
The Natural History Museum in London

The Natural History Museum in London

Tabea Tietz
On April 18, 1881, the Natural History Museum in London was opened for the public. It is one of the largest natural history museum‘s of the world. Sir Hans Sloane’s Collection Sir Hans Sloane was an Irish physician, but also a collector who provided the foundation for the museum. He allowed his collections to be purchased by the British government below their actual value on the free market. The collections included dried plants,…
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transportation
William Wilson and the First German Railway

William Wilson and the First German Railway

Harald Sack
On April 17, 1862, British mechanical engineer William Wilson passed away. He was the first engine driver of the locomotive Adler on the first German railway. There was a time, when every little boy wanted to become an engineer or engine driver. Master of the huge and powerful machine, driving the rails, faster and faster. But, this was already way before my time. I wanted to become an astronaut. What did I…
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