[Q]: Year 493 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Auruncus and Viscellinus (or, less frequently, year 261 "Ab urbe condita"). The denomination 493 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. 493 BC was the year Ab urbe condita in the post Julian Roman calendar.
[A]: It's impossible to say

[Q]: "The Ones Who Walk Away from Omelas" is a 1973 plotless, short, descriptive work of philosophical fiction, though popularly classified as a short story, by American writer Ursula K. Le Guin. With deliberately both vague and vivid descriptions, the narrator depicts a summer festival in the utopian city of Omelas, whose prosperity depends on the perpetual misery of a single child. The Ones Who Walk Away from Omelas is known for its plot.
[A]: No

[Q]: Joao was born in Boulogne-Billancourt, France to Pedro de Alcantara, Prince of Grao-Para and Countess Elisabeth Dobrzensky de Dobrzenicz. His father had been a member of the Brazilian Imperial Family but had joined his mother Isabel, Princess Imperial of Brazil in exile after the abolition of the monarchy. When Joao was 19, he emigrated to Brazil. Joao moved from Brazil to France at the age of 19
[A]: No

[Q]: In ancient Roman religion, Antevorta was a goddess of the future, also known as Porrima. She and her sister Postverta (or Postvorta) were described as companions or siblings of the goddess Carmenta, sometimes referred to as "the Carmentae". They may have originally been two aspects of Carmenta, namely those of her knowledge of the future and the past (compare the two-faced Janus). Antevorta was a goddess of fate.
[A]:
No