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... February 18 is the 49th day of the year in the Gregorian Calendar. ... The Julian calendar was introduced by Julius Caesar in 46 BC, taking force in 45 BC or 709 ab urbe condita. ... March 2 is the 61st day of the year in the Gregorian Calendar (62nd in leap years). ... The Gregorian calendar is the calendar widely used in the Western world. ... 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... May 4 is the 124th day of the year in the Gregorian calendar (125th in leap years). ... May 17 is the 137th day of the year in the Gregorian Calendar (138th in leap years). ... 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. ... The willingness to question previously held truths and search for new answers resulted in a period of major scientific advancements, now known as the Scientific Revolution. ... Electromagnetism is the physics of the electromagnetic field: a field, encompassing all of space, composed of the electric field and the magnetic field. ... Seismographs (in Greek seismos = earthquake and graphein = write) are used by seismologists to record seismic waves. ... 1906 was a common year starting on Monday (see link for calendar). ... Peter I permitted the Galitzines to take an emblem of the Grand Duchy of Lithuania as their coat of arms Galitzine, more correctly Golitsyn (Russian: Голицын), is one of the largest and noblest princely houses of Russia. ... Big Coat of Arms of the Russian Empire, adopted in 1882 Central element from the Coat of Arms of the Russian Empire Imperial Russia is the term used to cover the period of Russian history from the expansion of Russia under Peter the Great, through the expansion of the Russian...