Question

what had been put up on the bulletin - board? ​

Answer 1

Explanation:

The French districts of Alsace and Lorraine had been taken over by the Prussians. Hence, the bulletin board displayed the news that an order had come from Berlin to teach only German in the schools of Alsace and Lorraine.

Answer 2

ǫᴜᴇsᴛɪᴏɴ →

what had been put up on the bulletin - board?

ᴀɴsᴡᴇʀ →

The French districts of Alsace and Lorraine had been taken over by the Prussians. Hence, the bulletin board displayed the news that an order had come from Berlin to teach only German in the schools of Alsace and Lorraine.