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.
Fortifications of the Early Iron Age settlement Saharna Mare
Tyragetia, serie nouă, vol. I [XVI], nr. 1, Arheologie. Istorie Antică
Today over 82 Iron Age monuments are known in the area of the Middle Dniester, Central Moldavian Hills. The most impressive monuments are situated on high promontories and heights close to Saharna village, Republic of Moldova. These sites of ancient settlements and villages are known since the end of the 40s of the 20th c., when G.D. Smirnov carried out the first reconnaissance excavations. Saharna Mare settlement stands out among these monuments. Since 2001 systematic archeological research has been carried out on the site. Saharna Mare is situated on a high stony triangular promontory surrounded from all sides by deep inaccessible ravines. The promontory is accessible only from the South. Archeological research proves that the site was populated as early as the Early Iron Age when a Hallstatt settlement of Saharna-Solonceni type was founded there. Consequently the promontory was fortified in the south by a complex system of defense. It contained a wall which went from south-east to northwest, with a ditch and three semicircular ramparts in the centre and flanks.
A comprehensive study of Saharna Mare fortifications offers certain corrections to our understanding of the construction methods at ancient settlements in the 1st millennium BC. Remains of earth mounds almost always are wrecks of a once erected “wall”. The analysis of the main line of defensive system and two ramparts (the third is demolished) has shown that the fortification was constructed out of a timber wooden drainage placed on the leveled surface. In order to save the wooden fl oaring from moisture the gap was filled by sand. The timber drainage which was the footing of the fortification was pierced by poles located evenly and strengthened by longitudinal and transversal beams on different levels. This wooden carcass was filled by earth, stones, sand and clay. To ensure the preservation of the fortification the framework was filled by building material layer by layer. The outer sides of walls of the majority of settlements which were constructed following these methods have a 2-2,7 m wide berm. It was used as a base for a construction of clay and crushed stones aimed at protecting the wooden wall from fires, and it was thicker at its bottom and narrowing on its way to the top.
Ca. 2 meters away from its southern outer side a ditch was dug, with its width at the mouth varying between 16,5-18,0 m. Excavations have shown that in antiquity the width of the ditch on the surface was ca. 15,6 m, at the bottom – 6,1 m, the depth was 3,2 m, and its 2,1 m was dug out of the stony base of the promontory.
Horseshoe-shaped ramparts which were bordering the ditch were built using the same methodology. The precise time of erection and demolition of the defenses is so far difficult to establish with any precision. Following the analysis of the discovered material it is obvious that all of them were intact and functioning in the 4th –3d c. BC.
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 National Museum of History of Moldova takes place among the most significant museum institutions of the Republic of Moldova, in terms of both its collection and scientific reputation.
The National Museum of History of Moldova takes place among the most significant museum institutions of the Republic of Moldova, in terms of both its collection and scientific reputation.
The National Museum of History of Moldova takes place among the most significant museum institutions of the Republic of Moldova, in terms of both its collection and scientific reputation.
31 August 1989 St., 121 A, MD 2012, Chisinau, Republic of Moldova
