Crappie during the spawning period by fly fishermen, and can be taken from frozen ponds and lakes in winter by ice fishing. Before state fisheries departments began to implement more restrictive, conservation-minded regulations, a great number of crappies, especially in the Mississippi River states, were harvested commercially in the 19th and early 20th centuries. At one point the annual crappie catch sold at fish markets in the United States was reported to be approximately three million pounds. A commercial fishery for crappies existed at Reelfoot Lake in Tennessee until 2003. It was one of the few commercial fisheries for crappies in
What Is a Nation? and continues to be invoked. Political historian Karl Deutsch, in a quote sometimes mistakenly attributed to Renan, said that a nation is "a group of people united by a mistaken view about the past and a hatred of their neighbours". Benedict Anderson's 1983 work Imagined Communities, which states that a nation is an "imagined political community", argues that Renan contradicts himself when he says French people must have forgotten the St. Bartholomew's Day massacre, yet does not explain what it is. In other words, Renan assumes that all his readers will remember the very massacre he says they have forgotten.