[PAR] [TLE] Dan Brown [SEP] Daniel Gerhard "Dan" Brown (born June 22, 1964) is an American author of thriller fiction, most notably the novels "Angels & Demons" (2000), "The Da Vinci Code" (2003), and "Inferno" (2013).  Brown's novels are treasure hunts set in a 24-hour period, and feature the recurring themes of cryptography, keys, symbols, codes, and conspiracy theories.  His books have been translated into 52 languages, and as of 2012, sold over 200 million copies.  Three of them, "Angels & Demons" (2000), "The Da Vinci Code" (2003), and "Inferno" (2013), have been adapted into films. [PAR] [TLE] Rose Line [SEP] Rose Line is a fictional name given to the Paris Meridian and to the sunlight line defining the exact time of Easter on the Gnomon of Saint-Sulpice, marked by a brass strip on the floor of the church, where the two are conflated, by Dan Brown in his 2003 novel "The Da Vinci Code".  Brown based this on material found in the Priory of Sion documents of the 1960s, where neither the Zero Meridian nor the sunlight line in St Sulpice are called Rose Line.
[PAR] [TLE] Dan Brown [ SEP ] Daniel Gerhard " Dan " Brown ( born June 22 , 1964 ) is an American author of thriller fiction , most notably the novels " Angels & Demons " ( 2000 ) , " The Da Vinci Code " ( 2003 ) , and " Inferno " ( 2013 ) . Brown 's novels are treasure hunts set in a 24-hour period , and feature the recurring themes of cryptography , keys , symbols , codes , and conspiracy theories . His books have been translated into 52 languages , and as of 2012 , sold over 200 million copies . Three of them , " Angels & Demons " ( 2000 ) , " The Da Vinci Code " ( 2003 ) , and " Inferno " ( 2013 ) , have been adapted into films . [PAR] [TLE] Rose Line [ SEP ] Rose Line is a fictional name given to the Paris Meridian and to the sunlight line defining the exact time of Easter on the Gnomon of Saint - Sulpice , marked by a brass strip on the floor of the church , where the two are conflated , by Dan Brown in his 2003 novel " The Da Vinci Code " . Brown based this on material found in the Priory of Sion documents of the 1960s , where neither the Zero Meridian nor the sunlight line in St Sulpice are called Rose Line .
What is the nationality of the thriller fiction author who used the Rose Line as inspiration for his well known 2003 novel?
What is the nationality of the thriller fiction author who used the Rose Line as inspiration for his well known 2003 novel ?
American
American