Eras (1920-1999)

These are the eras for the past.:

Motion-Picture Era (1920-1959):

 * From Oswald the Lucky Rabbit (1920) through Goliath II (1959)
 * With Lambert the Sheepish Lion (1951) and Social Lion (1954)

Nonmotion-Picture Era (1960-1999):

 * From The Yogi Bear Show (1960) through Seasons of Giving (1999)
 * With The Smurfs (1981-1990) and Snorks (1984-1989)