July 11, 1987: The United Nations says the world population has reached 5 billion, only 13 years after passing the 4 billion mark.
July 11, 2000: A U.S. National Academy of Sciences panel backs up new guidelines from the Environmental Protection Agency on the dangers of mercury in seafood products. The EPA issues strict guidelines for fish consumption by children and pregnant women, citing high levels of mercury in fish that could potentially lead to neurological problems.
July 11, 2007: Lady Bird Johnson, wife of U.S. President Lyndon Johnson, dies in Austin, Texas. While her husband served as president, Lady Bird made highway beautification a national issue, inspiring state and federal measures to limit roadside billboards and promote the planting of wildflowers.
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