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Although there is some evidence of earlier inhabitation in the region of Utrecht, dating back to the Stone Age (app. 2200 BCE) and settling in the Bronze Age (app. 1800–800 BCE), the founding date of the city is usually related to the construction of a Roman fortification (castellum), probably built in around 50 CE. A series of such fortresses was built after the Roman emperor Claudius decided the empire should not expand north. To consolidate the border the limes Germanicus defense line was constructed  along the main branch of the river Rhine, which at that time flowed through a more northern bed compared to today (what is now the Kromme Rijn). These fortresses were designed to house a cohort of about 500 Roman soldiers. Near the fort settlements would grow housing artisans, traders and soldiers' wives and children.

How many soldiers did the fortress hold 
Answer: These fortresses were designed to house a cohort of about 500 Roman soldiers
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A few insects, such as members of the families Poduridae and Onychiuridae (Collembola), Mycetophilidae (Diptera) and the beetle families Lampyridae, Phengodidae, Elateridae and Staphylinidae are bioluminescent. The most familiar group are the fireflies, beetles of the family Lampyridae. Some species are able to control this light generation to produce flashes. The function varies with some species using them to attract mates, while others use them to lure prey. Cave dwelling larvae of Arachnocampa (Mycetophilidae, Fungus gnats) glow to lure small flying insects into sticky strands of silk. Some fireflies of the genus Photuris mimic the flashing of female Photinus species to attract males of that species, which are then captured and devoured. The colors of emitted light vary from dull blue (Orfelia fultoni, Mycetophilidae) to the familiar greens and the rare reds (Phrixothrix tiemanni, Phengodidae).

Elateridae and Staphylinidae are what kind of luminescent?
Answer: bioluminescent
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 France: The torch relay leg in Paris, held on April 7, began on the first level of the Eiffel Tower and finished at the Stade Charléty. The relay was initially supposed to cover 28 km, but it was shortened at the demand of Chinese officials following widespread protests by pro-Tibet and human rights activists, who repeatedly attempted to disrupt, hinder or halt the procession. A scheduled ceremony at the town hall was cancelled at the request of the Chinese authorities, and, also at the request of Chinese authorities, the torch finished the relay by bus instead of being carried by athletes. Paris City officials had announced plans to greet the Olympic flame with peaceful protest when the torch was to reach the French capital. The city government attached a banner reading "Paris defends human rights throughout the world" to the City Hall, in an attempt to promote values "of all humanity and of human rights." Members from Reporters Without Borders turned out in large numbers to protest. An estimated 3,000 French police protected the Olympic torch relay as it departed from the Eiffel Tower and criss-crossed Paris amid threat of protests. Widespread pro-Tibet protests, including an attempt by more than one demonstrator to extinguish the flame with water or fire extinguishers, prompted relay authorities to put out the flame five times (according to the police authorities in Paris) and load the torch onto a bus, at the demand of Chinese officials. This was later denied by the Chinese Ministry of Foreign Affairs, despite video footage broadcast by French television network France 2 which showed Chinese flame attendants extinguishing the torch. Backup flames are with the relay at all times to relight the torch. French judoka and torchbearer David Douillet expressed his annoyance at the Chinese flame attendants who extinguished the torch which he was about to hand over to Teddy Riner: "I understand they're afraid of everything, but this is just annoying. They extinguished the flame despite the fact that there was no risk, and they could see it and they knew it. I don't know why they did it."

Where did the Paris route start for the torch relay?
Answer:
the Eiffel Tower