This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: As early as 1650, settlers from the Virginia colony moved into the area of Albemarle Sound. By 1663, King Charles II of England granted a charter to start a new colony on the North American continent; it generally established North Carolina's borders. He named it Carolina in honor of his father Charles I. By 1665, a second charter was issued to attempt to resolve territorial questions. In 1710, owing to disputes over governance, the Carolina colony began to split into North Carolina and South Carolina. The latter became a crown colony in 1729. Question: What year did King Charles II grant a charter to North America?
1663

Passage: Caesar was now the primary figure of the Roman state, enforcing and entrenching his powers. His enemies feared that he had ambitions to become an autocratic ruler. Arguing that the Roman Republic was in danger, a group of senators hatched a conspiracy and assassinated Caesar at a meeting of the Senate in March 44 BC. Mark Antony, Caesar's lieutenant, condemned Caesar's assassination, and war broke out between the two factions. Antony was denounced as a public enemy, and Caesar's adopted son and chosen heir, Gaius Octavianus, was entrusted with the command of the war against him. At the Battle of Mutina Mark Antony was defeated by the consuls Hirtius and Pansa, who were both killed. Question: When did Julius Caesar die?
March 44 BC

Passage: Jim Foster, a promotions manager with the National Football League, conceived of indoor football while watching an indoor soccer match at Madison Square Garden in 1981. While at the game, he wrote his idea on a 9x12 envelope, with sketches of the field and notes on gameplay. He presented the idea to a few friends at the NFL offices, where he received praise and encouragement for his concept. After solidifying the rules and a business plan, and supplemented with sketches by a professional artist, Foster presented his idea to various television networks. He reached an agreement with NBC for a "test game". Question: In what year did Jim Foster conceive of the idea of arena football?
1981