Q: What is the question to: "Halley's Comet last appeared in the inner Solar System in 1986 and will next appear in mid-2061."? The topic is Halley's Comet.
A: "when is halley's comet next?"

Q: What is the question to: "The civil rights movement was a series of worldwide political movements for equality before the law that peaked in the 1960s."? The topic is Civil rights movement.
A: "when did the civil rights movement begin?"

Q: What is the question to: "The Moon is thought to have formed nearly 4.5 billion years ago, not long after the Earth."? The topic is Moon.
A: "how was the moon formed?"

Q: What is the question to: "Maya numerals are a vigesimal ( base - twenty ) numeral system used by the Pre-Columbian Maya civilization ."? The topic is Maya numerals.
A:
"what people used mayan numeral system?"