“What came after the stone age and the bronze age?”/“The sausage.”

A joke about the “sausage” (or “Saus Age”) is:
 
TEACHER: What came after the stone age and the bronze age?
STUDENT: The saus-age.
 
The joke was printed in many newspapers in 1907.
 
     
13 August 1907, Philadelphia (PA) Inquirer, “This and That,” pg. 8, col. 4:
The Saus-age
Schoolmaster (examining class in early English history)—Now, then, boys, first we have the Stone Age, then the Bronze Age. Now can any of you give me another age?
Billy Brahn—Please, sir, the Saus-age.
 
31 August 1907, San Francisco (CA) Chronicle, “In Lighter Vein,” pg. 6, col. 5:
THE SAUS-AGE.
School master (examining class in early English history)—Now, then, boys, first we have the Stone Age, then the Bronze Age. Now can any of you give me another age?
Billy Brahn—Please, sir, the Saus-age. Exchange.
 
Chronicling America
5 September 1907, Daily Capitol Journal (Salem, OR), pg. 3, col. 5:
The Saus-age.
School master (examining class in early English history)—Now, then, boys, first we have the stone age, then the bronze age. Now can any of you give me another age?
Billy Brahn—Please, sir, the saus-age.—Exchange.
       
Google Books
Language Play, Language Learning
By Guy Cook
New York, NY: Oxford University Press
2000
Pg. 2:
One child is telling jokes:
 
What came after the Bronze Age and the Stone Age?
The Saus Age.
 
Google Books
1001 Cool School Yard Jokes
By Glen Singleton
Heatherton, Victoria: Hinkler Books
2004
Pg. 14:
Teacher: ‘What came after the Stone Age and the Bronze Age?’
Student: ‘The saus-age.’
 
Twitter
Bollywood Sargam‏
@bollywoodsargam
School jokes - 8544 Joke: Teacher: What came after the stone age and the bronze age? Pupil: The sausage! .... http://bit.ly/9zbGK
6:29 AM - 26 Jul 2009
 
Twitter
GET LOLIFIED!‏
@TheLOLWorld
JOKE: Teacher: “What came after the stone age and the bronze age?”
Little Johnny: “The sausage!” http://ift.tt/2aWP14d
4:06 AM - 26 Nov 2017