During the Siege of Paris, the only way for the provincial government in Tours to communicate with Paris was by pigeon post, and, as the pigeons could not carry paper dispatches, the Tours government turned to microfilm.
The only way for the provincial government in Tours to communicate with Paris was by pigeon post. This was during the Siege of Paris. The Tours government turned to microfilm. This was during the Siege of Paris. The pigeons could not carry paper dispatches.