Context: Hunting and gathering was presumably the subsistence strategy employed by human societies beginning some 1.8 million years ago, by Homo erectus, and from its appearance some 0.2 million years ago by Homo sapiens. It remained the only mode of subsistence until the end of the Mesolithic period some 10,000 years ago, and after this was replaced only gradually with the spread of the Neolithic Revolution.

Question: When did human populations begin using hunting-gathering?
Answer: 1.8 million years ago

Question: What phase of human used subsistence strategies to find food?
Answer: Homo erectus

Question: When did Homo sapiens begin using subsistence gathering?
Answer: 0.2 million years ago

Question: When did hunting-gathering begin to fade from use?
Answer: 10,000 years ago

Question: What began replacing hunting-gathering at the end of the Mesolithic period?
Answer: Neolithic Revolution

Question: What remained the only mode of subsistence until the end of the Paleolithic period?
Answer: Unanswerable

Question: What was replaced only gradually with the spread of the Mesolithic Revolution?
Answer: Unanswerable

Question: The Neolithic Period ended how many years ago?
Answer: Unanswerable

Question: Which revolution spread rapidly?
Answer: Unanswerable

Question: Which subsistence strategy started with the Neolithic Revolution?
Answer: Unanswerable