#Exhibit of the Month

One of the great technical achievements that revolutionized the idea of time and space, opening a new era in the history of communication, is telegraphy. It is based on the transmission of electrical signals through a cable over long distances, allowing people to communicate instantly. The telegraph spread very quickly and a network of wires stretched around the world.

In 1837, the American painter and physicist Samuel Morse invented the first electromagnetic device for telegraphy, patented in 1840. To send messages by wire, Morse developed in 1838 a simple code of dots and dashes, which represented the letters of the alphabet, known as "Morse code ".

Both Morse code and the telegraph machine were improved over time, with the telegraph becoming the most widespread system of communication and information transmission for more than a century, until the advent of the Internet. The telegraph system consisted of a series of stations repeaters along the transmission line route. Each station had an operator who received and transmitted messages by telegraph. The Morse machine transmitted about 25 words per minute, which were recorded in code on a paper tape. The operator in charge of transmitting the message would decode it and write it on paper using a special typewriter.

In Bessarabia, the telegraph entered in 1860: on April 8, the Bender telegraph station began its activity, and on April 24, the one in Chisinau, following the construction of the first Odesa-Chisinau-Leova telegraph line. Currently, telegraph services have been discontinued. The only ones who still use coded communication are radio amateurs.

The Morse telegraph machine shown comes from the Osinoostrovsky electrotechnical plant, Soviet Union, and dates back to 1934. The exhibit was restored by Mihail Culașco.

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Exhibitions

“Enigma. Victory of decrypting”

June 14 - 30, 2021

Thanks to the efforts of brilliant Polish mathematicians, the complex cipher of the Enigma, the German cipher machine, was broken. This influenced the course of World War II. More than seventy years after its completion, the Polish Institute and the Wielkopolska Voivodeship Council invite you from 14 to 30 June 2021 to the National Museum of History of Moldova to visit the exhibition entitled "Enigma. The victory of decrypting".

The German Enigma cipher machine was made by Arthur Scherbius. He achieved commercial success in the civilian market, as well as in state and administrative institutions long before the outbreak of World War II (1939-1945). As early as 1932, Polish cryptologists managed to decipher the extremely complex Enigma codes for the first time. This took place at the Saxon Palace in Warsaw, which housed the headquarters of the Cipher Bureau of the 2nd Division of the Polish Army General Staff.

The parents of the success were the Polish mathematicians-cryptologists: Marian Rejewski, Jerzy Różycki and Henryk Zygalski. Their achievements have allowed the decoding of the Enigma ciphers, which were constantly being improved.

Five weeks before the outbreak of World War II, on July 25, 1939, the heads of the Polish Cipher Bureau and the mathematicians-cryptologists revealed the Polish achievements to the French and British secret services. After the outbreak of the war, decryption continued in Great Britain and France, with the participation of Polish scientists. This part of the story is known, however, from movies and books.

The exhibition, prepared by the Wielkopolska Voivodeship Council and, in the Romanian version, by the Polish Institute in Bucharest, acquaints us with the history of lesser-known Polish heroes-cryptologists, their teachers and collaborators, whose knowledge and mathematical genius allowed them to reveal one of the best kept secrets of the Third Reich.

Observing the development of the contemporary knowledge-based economy, we often forget that, in many areas, its roots spring from the trenches of the great wars of the 20th century.

The exhibition can be seen on the fence of the National Museum of History of Moldova (31 August 1989 Street, no. 121A) from 14 to 30 June 2021.

The fascinating history of this achievement can be read in the article about the Enigma in the monthly magazine "Historia" (text in Romanian).