Question: What was the birth date of the author of "Flotsam"?

Context paragraphs:
Akhund Mullah Mohammad Kashani: Akhund Mullah Mohammad Kashani, known as lunar tiles in 1833 was born in Kashan.  In place of his birth date and age of his birth is not mentioned during the 84 years of his life, to guess.  According to Syed Jalaluddin Homai, he, along with Jahangir Khan Qashqai as two distinguished professor in philosophy and jurisprudence, literature and jurisprudence have.  He taught for fifty years and foster outstanding students in the fields of intellectual and traditional sciences.  He died in 1914 in Isfahan and was buried in Takht-e Foulad.

Ruler X (Rio Azul): Ruler X (also Governor X) is the designation given by archaeologists to a pre-Columbian Maya ruler at the site of Rio Azul, whose name glyphs have otherwise not been satisfactorily deciphered.  Ruler X is associated with Tomb 1 located in Structure C-1, where a mural inscription on the walls of the tomb carries the Long Count date of 8.19.1.9.13.  This date, equivalent to September 27, 417 CE in the proleptic Gregorian calendar, has been interpreted as the birth date of this ruler.

Erich Maria Remarque: Erich Maria Remarque (born Erich Paul Remark; 22 June 1898 – 25 September 1970) was a German

So Ends Our Night: So Ends Our Night is a 1941 drama starring Fredric March, Margaret Sullavan and Glenn Ford, and directed by John Cromwell.  The screenplay was adapted by Talbot Jennings from the fourth novel "Flotsam" by the famous German exile, Erich Maria Remarque, who rose to international fame for his first novel, "All Quiet On The Western Front".

Astro Boy (2003 TV series): Astro Boy (アストロボーイ・鉄腕アトム , Asutoro Bōi: Tetsuwan Atomu , lit.  "Astro Boy: Mighty Atom") is a remake of the 1960s anime series of the same name created by Osamu Tezuka, which was produced by his company, Tezuka Productions, Sony Pictures Entertainment Japan, Dentsu, and Fuji Television network.  It was also shown on Animax, who have broadcast the series across its respective networks worldwide, including Japan, Southeast Asia, South Asia, East Asia, and other regions.  It was created to celebrate the birth date of Atom/Astro Boy (as well as the 40th anniversary of the original TV series).  Under the original English name (instead of "Mighty Atom"), it kept the same classic art style as the original manga and anime, but was revisioned and modernized with more lush, high-quality, near-theatrical animation and visuals.  It combined the playfulness of the early anime with the darker, more serious and dramatic Science fiction themes of the manga and the 1980 series.  The anime broadcast in Japan on the same date as Atom's/Astro's birth in the manga (April 6, 2003) across Animax and Fuji Television.  It was directed by Kazuya Konaka and written by Chiaki J. Konaka at the beginning of the series.  Other writers included were Keiichi Hasegawa, Sadayuki Murai, Ai Ohta, Hirotoshi Kobayashi, Kenji Konuta, and Marc Handler, who was also executive story editor.

Sándor Kőrösi Csoma: Sándor Csoma de Kőrös (] ; 27 March 1784/811 April 1842), born Csoma Sándor (Csoma being the family name) was a Hungarian philologist and Orientalist, author of the first Tibetan-English dictionary and grammar book.  He was called Phyi-glin-gi-grwa-pa in Tibetan, meaning ""the foreign pupil"" and was given the title of Bosatsu or Boddhisatva (Buddhist sainthood) by the Japanese in 1933.  He was born in Kőrös, Grand Principality of Transylvania (today Chiuruş, Romania).  His birth date is often given as 4 April, although this is actually his baptism day and the year of his birth is debated by some authors who put it at 1787 or 1788 rather than 1784.  The Magyar ethnic group, the Székelys, to which he belonged believed that they were derived from a branch of Attila's Huns who had settled in Transylvania in the fifth century.  Hoping to study the claim and to find the place of origin of the Székelys and the Magyars by studying language kinship, he set off to Asia in 1820 and spent his lifetime studying the Tibetan language and Buddhist philosophy.  Csoma de Kőrös is considered as the founder of Tibetology.  He was said to have been able to read in seventeen languages.  He died in Darjeeling while attempting to make a trip to Lhasa in 1842 and a memorial was erected in his honour by the Asiatic Society of Bengal.

Tovma Artsruni: Tovma Artsruni (Armenian: Թովմա Արծրունի ; also known in English-language historiography as Thomas Artsruni; precise birth date and date of death unknown) was a ninth-century to tenth-century Armenian historian and author of the "History of the House of Artsrunik" (Armenian: Պատմություն Արծրունյաց Տան ).  Contrary to the given title, the four-volume work not only relates the history of Artsruni royal family, of which he was a member of, and its origins near Lake Van but also comprehensively covers the history of Armenia.

Thomas D. Singleton: Thomas Day Singleton (Birth date unknown – November 25, 1833) was a United States Representative from South Carolina.  He was born near Kingstree, South Carolina but his birth date is unknown.

Hippolytus (archbishop of Gniezno): Hippolytus or Hipolit (died c. 1027) was an early medieval archbishop of Gniezno.  His place and date of birth date are unknown but the medieval historian Jan Długosz claims that he was of noble birth and a Roman citizen.  Modern scholars generally agree that he was not Polish.

Cédula de identidad (Costa Rica): In Costa Rica, in recent years, a cédula de identidad, has been a credit card-sized plastic card.  On one side, it includes a photo of the person, a personal identification number, and the card's owner personal information (complete name, gender, birth date, and others), and the user's signature.  On the reverse, it may include additional information such as the date when the ID card was granted, expiration date of the ID card, and other such as their fingerprints, and all the owner's information in matrix code.  Every Costa Rican citizen must carry an ID card immediately after turning 18.

Supporting paragraphs: So Ends Our Night Erich Maria Remarque
Answer: 22 June 1898