The problem: Answer a question about this article:
The history of biodiversity during the Phanerozoic (the last 540 million years), starts with rapid growth during the Cambrian explosiona period during which nearly every phylum of multicellular organisms first appeared. Over the next 400 million years or so, invertebrate diversity showed little overall trend, and vertebrate diversity shows an overall exponential trend. This dramatic rise in diversity was marked by periodic, massive losses of diversity classified as mass extinction events. A significant loss occurred when rainforests collapsed in the carboniferous. The worst was the Permian-Triassic extinction event, 251 million years ago. Vertebrates took 30 million years to recover from this event.
Which era included a rapid growth period?
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The answer: the Cambrian explosion

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The earliest record of the location appears as Sao Joao on a Portuguese map by Pedro Reinel in 1519. When John Rut visited St. John's in 1527 he found Norman, Breton and Portuguese ships in the harbour. On 3 August 1527, Rut wrote a letter to King Henry on the findings of his voyage to North America; this was the first known letter sent from North America. St. Jehan is shown on Nicholas Desliens' world map of 1541 and San Joham is found in Joao Freire's Atlas of 1546. It was during this time that Water Street was first developed, making it the oldest street in North America.[dubious discuss]
What year did John Rut visit St. John's?
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The answer: 1527

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President Richard Nixon declared current species conservation efforts to be inadequate and called on the 93rd United States Congress to pass comprehensive endangered species legislation. Congress responded with a completely rewritten law, the Endangered Species Act of 1973 which was signed by Nixon on December 28, 1973 (Pub.L. 93205). It was written by a team of lawyers and scientists, including the first appointed head of the Council on Environmental Quality (CEQ),an outgrowth of NEPA (The "National Environmental Policy Act of 1969") Dr. Russell E. Train. Dr. Train was assisted by a core group of staffers, including Dr. Earl Baysinger at EPA (currently Assistant Chief, Office of Endangered Species and International. Activities), Dick Gutting (U.S. Commerce Dept. lawyer, currently joined NOAA the previous year (1972), and Dr. Gerard A. "Jerry" Bertrand, a marine biologist (Ph.D, Oregon State University) by training, who had transferred from his post as the Scientific Adviser to the U.S Army Corps of Engineers, office of the Commandant of the Corp. to join the newly formed White House office. The staff, under Dr. Train's leadership, incorporated dozens of new principles and ideas into the landmark legislation; crafting a document that completely changed the direction of environmental conservation in the United States. Dr. Bertrand is credited with writing the most challenged section of the Act, the "takings" clause - Section 2.
Who led the team of lawyers and scientists who crafted the Endangered Species Act of 1973?
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The answer: Dr. Russell E. Train

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Basketball is also a notable sport in Estonia. Estonia national basketball team previously participated in 1936 Summer Olympics, appeared in EuroBasket four times. Estonia national team also qualified to EuroBasket 2015, which will be held in Ukraine. BC Kalev/Cramo, which participates in EuroCup, is the most recent Korvpalli Meistriliiga winner after becoming champion of the league for the 6th time. Tartu Ulikool/Rock, which participates in EuroChallenge, is the second strongest Estonian basketball club, previously winning Korvpalli Meistriliiga 22 times. Six Estonian basketball clubs participates in Baltic Basketball League.
What year did Estonia's basketball team first compete in the Summer Olympics
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The answer:
1936