Tsar (/zɑːr, (t)sɑːr/; also spelled czar, tzar, or csar; Bulgarian: цар, romanized: tsar; Serbian: цар / car; Russian: царь, romanized: tsar) was a title...

sister group has been found to be telonemids, with which they make up the TSAR clade. The name SAR is an acronym derived from the first letters of its three...

The Tsar Bomba (Russian: Царь-бомба, tr. Tsar'-bomba, IPA: [t͡sarʲ ˈbombə], lit. 'Tsar bomb'; code name: Ivan or Vanya), also known by the alphanumerical...

Kiev, Vladimir, Novgorod; Tsar of Kazan, Tsar of Astrakhan, Tsar of Poland, Tsar of Siberia, Tsar of Tauric Chersonesus, Tsar of Georgia; Lord of Pskov...

Освободи́тель, tr. Aleksándr Osvobodítel, IPA: [ɐlʲɪˈksandr ɐsvəbɐˈdʲitʲɪlʲ]). The tsar was responsible for other reforms, including reorganizing the judicial system...

centralized Russian state was formed, this was followed by the title of tsar, meaning "caesar", which was disputed to be the equal of either a king or...

The Tsar of all Russia, officially the Sovereign, Tsar and Grand Prince of all Russia, was the title of the Russian monarch from 1547 to 1721. During this...

The Tsar Cannon (Russian: Царь-пушка, Tsar'-pushka) is a large early modern period artillery piece (known as a bombarda in Russian) on display on the grounds...

The Tsar Bell (Russian: Царь–колокол; Tsar'-kolokol), also known as the Tsarsky Kolokol, Tsar Kolokol III, or Royal Bell, is a 6.14-metre-tall (20.1 ft)...

Russia from 1533, and Tsar of all Russia from 1547 until his death in 1584. He was the first Russian monarch to be crowned as tsar. Ivan IV was the eldest...