Prince Boris Borisovich Galitzine (b. St. Petersburg, February 18 (O.S.) or March 2 (N.S.), 1862; d. near Petrograd, May 4 (O.S.) or May 17 (N.S.), 1916) was a prominent Russian physicist who invented the first electromagnetic seismograph in 1906. He belonged to the Galitzine family, one of the leading noble houses of Imperial Russia. Saint Petersburg (Russian: Санкт-Петербу́рг, English transliteration: Sankt-Peterburg), colloquially known as Питер (transliterated Piter), formerly known as Leningrad (Ленингра́д, 1924–1991) and Petrograd (Петрогра́д, 1914–1924), is a city located in Northwestern Russia on the delta of the river Neva at the east end of the Gulf of Finland... Jump to: navigation, search February 18 is the 49th day of the year in the Gregorian Calendar. ... Jump to: navigation, search The Julian calendar was introduced by Julius Caesar in 46 BC, taking force in 45 BC (709 ab urbe condita). ... Jump to: navigation, search March 2 is the 61st day of the year in the Gregorian Calendar (62nd in leap years). ... Jump to: navigation, search The Gregorian calendar is the calendar that is used nearly everywhere in the world. ... Jump to: navigation, search 1862 was a common year starting on Wednesday (see link for calendar). ... Saint Petersburg (Russian: Санкт-Петербу́рг, English transliteration: Sankt-Peterburg), colloquially known as Питер (transliterated Piter), formerly known as Leningrad (Ленингра́д, 1924–1991) and Petrograd (Петрогра́д, 1914–1924), is a city located in Northwestern Russia on the delta of the river Neva at the east end of the Gulf of Finland... Jump to: navigation, search May 4 is the 124th day of the year in the Gregorian calendar (125th in leap years). ... Jump to: navigation, search May 17 is the 137th day of the year in the Gregorian Calendar (138th in leap years). ... Jump to: navigation, search 1916 is a leap year starting on Saturday (link will take you to calendar) // Events January-February January 1 -The first successful blood transfusion using blood that had been stored and cooled. ... Since antiquity, people have tried to understand the behavior of matter: why unsupported objects drop to the ground, why different materials have different properties, and so forth. ... Quadrupole (four-pole) magnet, focus particle beams in a particle accelerator. ... Seismographs (in Greek seismos = earthquake and graphein = write) are used by seismologists to record seismic waves. ... Jump to: navigation, search 1906 was a common year starting on Monday (see link for calendar). ... Jump to: navigation, search Peter I permitted the Galitzines to take an emblem of the Grand Duchy of Lithuania as their coat of arms The Galitzines, more correctly the Golitsyns (Russian: Голицын), are one of the largest and noblest princely houses of Russia. ... Jump to: navigation, search Big Coat of Arms of the Russian Empire, adopted in 1882 Flag of Russian Empire Imperial Russia is the term used to cover the period of history from the expansion of Russia under Peter the Great, through the expansion of the Russian Empire from the Baltic...