Felix Ruvimovich Gantmacher (Russian: Феликс Рувимович Гантмахер ) (23 February 1908 – 16 May 1964) was a Soviet mathematician, professor at Moscow Institute of Physics and Technology, well known for his contributions in mechanics, linear algebra and Lie group theory.
 In 1925–1926 he participated in seminar guided by Nikolai Chebotaryov in Odessa and wrote his first research paper in 1926.
Nikolai Grigorievich Chebotaryov (often spelled Chebotarov or Chebotarev, Russian: Никола́й Григо́рьевич Чеботарёв , Ukrainian: Микола Григорович Чоботарьов ) (15 June [O.S. 3 June] 1894 – 2 July 1947) was a noted Ukrainian and Soviet mathematician.
 He is best known for the Chebotaryov density theorem.
The 1967 October Revolution Parade is the parade on Moscow's Red Square devoted to the 50th anniversary of the Great October Socialist Revolution, 7 November 1967.
 As 1967 being the 50th anniversary parade it would feature troops dressed up as historical units from the Russian civil war era.
 It would also feature the first Color guard on parade from the honor guard.
 Cavalry units from the Revolution era also rode through Red Square.
 Commanding the parade is First Deputy Commander of the Moscow Military District, Colonel General Evgeny Ivanovski.
 Inspecting the parade and also giving his first jubilee address is Marshal of the Soviet Union Andrei Grechko.
 General Secretary of the Communist Party of the Soviet Union Leonid Brezhnev was on Lenin's Mausoleum in attendance.
 Major General Nikolai Nazarov led the Massed bands of the Soviet Union.
 The General Secretary of the Communist Party of East Germany Walter Ulbricht was also in attendance.
 The massed bands marched off to the tune of "My Beloved Motherland".
The Russian cellist Leonid Gorokhov (born 1967 in Saint Petersburg) studied at the St. Petersburg Conservatoire with Anatoli Nikitin and took part in masterclasses with Daniil Shafran.
 Winner of Concertino Praga (First Prize) and Paris Chamber Music Competition (Premier Grand Prix), Leonid Gorokhov is the only Russian cellist to be awarded the Grand Prix and the First Prize of the Geneva Concours (1986).
 In 1995 the European Association for Encouragement of the Arts awarded the Cultural Achievement Prize to Leonid Gorokhov for exceptional talent and outstanding artistic accomplishment.
Chebotarev's density theorem in algebraic number theory describes statistically the splitting of primes in a given Galois extension "K" of the field formula_1 of rational numbers. Generally speaking, a prime integer will factor into several ideal primes in the ring of algebraic integers of "K".
 There are only finitely many patterns of splitting that may occur.
 Although the full description of the splitting of every prime "p" in a general Galois extension is a major unsolved problem, the Chebotarev density theorem says that the frequency of the occurrence of a given pattern, for all primes "p" less than a large integer "N", tends to a certain limit as "N" goes to infinity.
 It was proven by Nikolai Chebotaryov in his thesis in 1922, published in .
Leonid Genrikhovich Khachiyan (Armenian: Լեոնիդ Գենրիխովիչ Խաչիյան ; Russian: Леонид Генрихович Хачиян ; May 3, 1952 – April 29, 2005) was a Soviet mathematician of Armenian descent who taught Computer Science at Rutgers University.
 He was most famous for his ellipsoid algorithm (1979) for linear programming, which was the first such algorithm known to have a polynomial running time.
 Even though this algorithm was shown to be impractical due to the high degree of the polynomial in its running time, it has inspired other randomized algorithms for convex programming and is considered a significant theoretical breakthrough.
In Greek mythology, Despoina, Despoena or Despoine, was the daughter of Demeter and Poseidon and sister of Arion.
 She was the goddess of mysteries of Arcadian cults worshipped under the title "Despoina", "the mistress" alongside her mother Demeter, one of the goddesses of the Eleusinian mysteries.
 Her real name could not be revealed to anyone except those initiated to her mysteries.
 Pausanias spoke of Demeter as having two daughters; Kore being born first, then later Despoina.
 With Zeus being the father of Kore, and Poseidon as the father of Despoina.
 Pausanias made it clear that Kore is Persephone, though he wouldn't reveal Despoina's proper name.
Professor Wale Adebanwi, (born 1969), is a Nigerian - born first Black African Rhodes Professor at Oxford University
Augustine of Canterbury (born first third of the 6th century – died probably 26 May 604) was a Catholic Benedictine monk who became the first Archbishop of Canterbury in the year 597.
 He is considered the "Apostle to the English" and a founder of the Catholic Church in England.
"Lab Rats", also known as "Lab Rats: Bionic Island" for its fourth season, is an American television sitcom that premiered on February 27, 2012, on Disney XD.
 It focuses on the life of teenager Leo Dooley, whose mother, Tasha, marries billionaire genius Donald Davenport.
 He meets Adam, Bree, and Chase, three bionic superhumans, with whom he develops an immediate friendship.
 It should be noted that the names of the Lab Rats imply that they were originally known as subjects A, B, C and D. Adam was born first, then Bree, then Chase, and finally Daniel.

Question: Who was born first, Nikolai Chebotaryov or  Leonid Khachiyan?
Answer: Nikolai Grigorievich Chebotaryov