Detailed Instructions: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Q: Passage: Humans have lived in what is now Pennsylvania since at least 10,000 BC. The first settlers were Paleo-Indian nomadic hunters known from their stone tools. The hunter-gatherers of the Archaic period, which lasted locally from 7000 to 1000 BC, used a greater variety of more sophisticated stone artefacts. The Woodland period marked the gradual transition to semi-permanent villages and horticulture, between 1000 BC and 1500 AD. Archeological evidence found in the state from this time includes a range of pottery types and styles, burial mounds, pipes, bows and arrow, and ornaments.Worlds End State Park is in the West Branch Susquehanna River drainage basin, whose earliest recorded inhabitants were the Iroquoian-speaking Susquehannocks. They were a matriarchial society that lived in stockaded villages of large longhouses. Their numbers were greatly reduced by disease and warfare with the Five Nations of the Iroquois, and by 1675 they had died out, moved away, or been assimilated into other tribes.After this, the lands of the West Branch Susquehanna River valley were under the nominal control of the Iroquois. The Iroquois also lived in longhouses, primarily in what is now New York, and had a strong confederacy which gave them power beyond their numbers. To fill the void left by the demise of the Susquehannocks, the Iroquois encouraged displaced tribes from the east to settle in the West Branch watershed, including the Shawnee and Lenape (or Delaware).The French and Indian War (1754–1763) led to the migration of many Native Americans westward to the Ohio River basin. On November 5, 1768, the Province of Pennsylvania acquired the New Purchase from the Iroquois in the Treaty of Fort Stanwix, including what is now Worlds End State Park. After the American Revolutionary War, Native Americans almost entirely left Pennsylvania.
The land that became Sullivan County was originally part of Northumberland County, then became part of Lycoming County when it was formed in 1795. Settlers first arrived in the park's townships in 1794. Shrewsbury Township was formed from Muncy Township in 1803, and Forks Township was formed from Shrewsbury Township in 1833, both while still part of Lycoming County. Sullivan County was formed from the northeastern part of Lycoming County on March 15, 1847.
A:
What period ended in 1000 BC in Pennsylvania?