Describir: Fifty years

  _____     _____               ______               ___     _____    
 /  ___||  |  ___||   ____     /_   _//   ____      / _ \\  |  __ \\  
| // __    | ||__    |    \\    -| ||-   |    \\   | / \ || | |  \ || 
| \\_\ ||  | ||__    | [] ||    _| ||_   | [] ||   | \_/ || | |__/ || 
 \____//   |_____||  |  __//   /_____//  |  __//    \___//  |_____//  
  `---`    `-----`   |_|`-`    `-----`   |_|`-`     `---`    -----`   
                     `-`                 `-`                          
   ___    
  / _ \\  
 | / \ || 
 | \_/ || 
  \___//  
  `---`