Ad
Sponsored by Sir Tauqeer
CLICK HERE TO JOIN SIR TAUQUEER WHATSAPP GROUP
FOR PREPARATION CLASSES AND JOBS UPDATES
Join Now

The chalkboard was patented in:

A. 1923
B. 1924
C. 1925
D. 1926
Correct Answer: C. 1925

The chalkboard, a ubiquitous educational tool, was officially patented in 1925, marking its formal recognition and widespread adoption in classrooms.

Leave a Comment

Join Our WhatsApp Channel ×
Scroll to Top