During the Era of Silence political parties were banned and the parliament was not in session between 1934 and 1938 as the country was ruled by decree by Konstantin Päts, who was elected as the first President of Estonia in 1938.

* 1874 – Konstantin Päts, 1st President of Estonia ( d. 1956 )

Estonian historians including Pusta and Tomingas have argued that the death was an act of defenestration by agents of the first President of Estonia, Konstantin Päts.

* January 18 – Konstantin Päts, President of Estonia ( b. 1874 )

* February 23 – Konstantin Päts, Estonian president ( d. 1956 )

* March 12 – Konstantin Päts and general Johan Laidoner stage a coup in Estonia, and ban all political parties.

However, the Vaps Movement was thwarted by a pre-emptive coup d ' état on March 12, 1934, by Head of State Konstantin Päts, who then established his own authoritarian rule until a new constitution came to force.

During the Era of Silence, political parties were banned and the parliament was not in session between 1934 and 1938 as the country was ruled by decree by Konstantin Päts.

In Estonia, the German military administration transmitted power to the Government of Estonia headed by Konstantin Päts.

The Order of the National Coat of Arms (, ) was instituted by Konstantin Päts on 7 October 1936 to commemorate 24 February 1918, the day on which Estonian independence was declared.

Special sash ( Riigivapi teenetemärgi erisuurpael ) was received by Konstantin Päts after his accession to the post of the President of the Republic.

Estonian Labour Party remained in the coalition, headed by State Elder Konstantin Päts of Farmers ' Assemblies.

In 1936 he supported Juhan Kukk, Ants Piip, Jaan Teemant and Jaan Tõnisson, who signed a memorandum addressed to Prime Minister in duties of the State Elder Konstantin Päts, demanding civil freedoms and an end to his authoritarian rule.

* Konstantin Päts

The deposed presidents of Estonia ( Konstantin Päts ) and Latvia ( Kārlis Ulmanis ) were imprisoned and deported to the USSR and died later in Siberia and Central Asia.

On November 16, the provisional government called for voluntary mobilization and began to organize the Estonian Army, with Konstantin Päts as Minister of War, Major General Andres Larka as the chief of staff, and Major General Aleksander Tõnisson as commander of the Estonian Army, initially consisting of one division.

* Konstantin Päts

The sitting State Elder, Konstantin Päts, appointed himself to the position of Prime Minister and in this position was then able to suspend elections for Elder of State and for the Estonian Parliament.

* 1917: Konstantin Päts, the later conservative leader, founded the Radical Democratic Party ( Radikaal-Demokraatlik Erakond ).

Konstantin Päts VR I / 1 and III / 1 ( 23 February 1874 – 18 January 1956 ) was the most influential politician of interwar Estonia.

Konstantin Päts headed the Estonian Provisional Government ( 1918 – 1919 ), although being imprisoned during the German Occupation.

Konstantin Päts with his family.

Konstantin Päts was born on 23 February 1874 in Tahkuranna Parish, Pärnu County, Estonia, then part of the Governorate of Livonia of the Russian Empire.

The father of Konstantin, Jakob ( Jaagup ) Päts, was a housebuilder from Heimtali, Viljandi County, but was forced to move after getting into conflict with local nobility.

In Tallinn, Konstantin Päts started his career as an assistant at the advocacy of Jaan Poska, but the job wasn't satisfactory for Päts.

Many great scientists, who worked in Imperial Russia ( like, e. g. Konstantin Tsiolkovsky ), continued to work in the USSR and gave birth to Soviet science.

These early military experiences gave Konstantin a loathing of army life and the futility of war.

Anna was twenty years younger than Konstantin and initially she resisted his advances, but in 1873 she gave birth to their first child.

Once more Konstantin gave ammunition to his enemies and society sided in the scandal with his suffering wife, who tried to bear his infidelity with dignity.

Anna was twenty years younger than Konstantin and in 1873 she gave birth to their first child.

By this act Konstantin gave ammunition to his political enemies, with Russian society reacting to the scandal by siding with his suffering wife, Alexandra, who tried to bear his infidelity with dignity.

This theory is called the endosymbiotic theory, and was first articulated by the Russian botanist Konstantin Mereschkowski in 1905.

Konstantin Tsiolkovsky published the first work on space travel, which was inspired by the writings of Jules Verne

In 1903, high school mathematics teacher Konstantin Tsiolkovsky ( 1857 – 1935 ), published Исследование мировых пространств реактивными приборами ( The Exploration of Cosmic Space by Means of Reaction Devices ), the first serious scientific work on space travel.

In 1903, Konstantin Tsiolkovsky ( 1857 – 1935 ) published Means of Reaction Devices ( in Russian: Исследование мировых пространств реактивными приборами ), which is the first academic treatise on the use of rocketry to launch spacecraft.

The concept for a space elevator was first published in 1895 by Konstantin Tsiolkovsky.

On 16 January 1878, the Turkish steamer Intibah became the first vessel to be sunk by self-propelled torpedoes, launched from torpedo boats operating from the tender Velikiy Knyaz Konstantin under the command of Stepan Osipovich Makarov during the Russo-Turkish War of 1877-78.

The official father of the concept of electric propulsion is Konstantin Tsiolkovsky, as he is the first to publish mention of the idea in 1911.

The concept of the geostationary communications satellite was first proposed by Arthur C. Clarke, building on work by Konstantin Tsiolkovsky and on the 1929 work by Herman Potočnik ( writing as Herman Noordung ) Das Problem der Befahrung des Weltraums-der Raketen-motor.

The Saints Konstantin ( i. e. Cyril ) and Methodius, sent by the Byzantine Emperor Michael III to complete the Christianization of the kingdom, created there the first written Slavic language, Old Church Slavonic, written in the Glagolitic alphabet.

* Action ( theatre ), a principle in Western theatre practice first developed by Konstantin Stanislavski as part of his System of acting training

The peak was discovered in 1871 and originally named Mount Kaufmann after Konstantin Kaufman, the first Governor-General of Turkestan.

Notable Russian scientists include Dmitri Mendeleev, Nikolay Bogolyubov, Andrei Kolmogorov, Ivan Pavlov, Nikolai Semyonov, Dmitri Ivanenko, Nikolai Lobachevsky, Alexander Lodygin, Alexander Popov ( one of inventors of radio ), Nikolai Zhukovsky, Alexander Prokhorov and Nikolay Basov ( co-inventors of laser ), Georgiy Gamov, Vladimir Zworykin, Lev Pontryagin, Sergei Sobolev, Pavel Yablochkov, Aleksandr Butlerov, Andrei Sakharov, Dmitry Ivanovsky, Sergey Korolyov and Mstislav Keldysh ( creators of the Soviet space program ), Aleksandr Lyapunov, Mikhail Dolivo-Dobrovolsky, Andrei Tupolev, Yuri Denisyuk ( the first practicable method of holography ), Mikhail Lomonosov, Vladimir Vernadsky, Pyotr Kapitsa, Igor Sikorsky, Ludvig Faddeev, Zhores Alferov, Konstantin Novoselov, Fyodor Shcherbatskoy, Nikolai Trubetzkoy etc.

The endosymbiotic ( Greek: ἔνδον endon " within ", σύν syn " together " and βίωσις biosis " living ") theories were first articulated by the Russian botanist Konstantin Mereschkowski in 1905.

Potočnik's book described geostationary satellites ( first put forward by Konstantin Tsiolkovsky ) and discussed communication between them and the ground using radio, but fell short of the idea of using satellites for mass broadcasting and as telecommunications relays ( developed by Arthur C. Clarke in his Wireless World article of 1945 ).

The first author to refer to Murad's killer by his full name is Konstantin Mihailović, a Serbian Janissary from the village of Ostrovica, who wrote his Memoirs of a Janissary or Turkish Chronicle in ca 1497.

The initiators of the movement were Alexander Busygin ( automobile industry ), Nikolai Smetanin ( shoe industry ), Yevdokiya and Maria Vinogradov ( textile industry ), I. I. Gudov ( machine tool industry ), V. S. Musinsky ( timber industry ), Pyotr Krivonos ( railroad ), Pasha Angelina ( glorified as the first Soviet woman to operate a tractor ), Konstantin Borin and Maria Demchenko ( agriculture ) and many others.

The christening marked the first time some of the younger members of the Imperial Family, including some of the younger sons of Grand Duke Konstantin Konstantinovich, as well as the Grand Duchesses Olga and Tatiana, and their cousin Princess Irina Alexandrovna, were present at an official ceremony.

In second marriage he married the daughter of baron Konstantin von Nolken ( 1878 – 1949 ) Olga Gilbert ( maiden name von Nolken ), from the first marriage when he was married with Elizabeth, the daughter of Loris Melikov ( 1904 – 1912 ), who is at the same time the grand daughter of Countess Olga Ada Merenberg.

Slow development of this technology continued up to the later 19th century, when the writings of Konstantin Tsiolkovsky first talked about liquid fuelled rocket engines.

The academic tradition of interpretation of the wide use of the name " Vlachs " in this particular case as nothing more than a transient substitution and confusion of several medieval authors was affirmed in the second half of the 19th century by the Czech historian Konstantin Josef Jireček in his " History of the Bulgarians ", first published in 1876, in which he ignored the idea of significant ethnic Vlach participation in these processes, and is supported by the contemporary Bulgarian medievalist and researcher of the Asens Ivan Bozhilov.

The method takes its name from Ukrainian doctor Konstantin Pavlovich Buteyko ( Ukrainian: Бутейко ) ( 1923 – 2003 ), who first formulated its principles during the 1950s.

In 1932 a Russian, Konstantin Khrenov successfully implemented the first underwater electric arc welding.

The Times quoted the chief of the Tsentralnaya-Irmino mine's branch of the Party, Konstantin G. Petrov, as saying that " I suppose Stakhanov need not have been the first ...