President Lyndon Johnson had his first day in office after becoming the 36th president of the United States.
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US president Bill Clinton tore his knee and required surgery.
US President Herbert Hoover installed the White House's first telephone.
The first telephone was installed in the telegraph room in the White House, thanks to President Rutherford B. Hayes.
The arrest of five White House operatives sets off the Watergate scandal.
Andrew Johnson became the first US President to be impeached.
