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The invention of the telegraph accelerated the spread of news, and the news that the Prussian Government intended to sell the Rhineland region quickly spread throughout the European Continent.
In the Berlin Palace, Wilhelm I wiped his sweat and said, "Send someone to ask the Prime Minister, didn't he send someone to explain? Why hasn't the crowd outside dispersed yet?"
This is a characteristic of the era of nationalism, where people began to attach importance to territory. Land trades, which monarchs could once decide freely, now required consideration of public reaction.
Despite the abundant resources in the Rhineland region, it was not actually the core territory of the Kingdom of Prussia, and it was threatened by the French, diminishing its significance in the eyes of the government even further.