Based on our earlier discussion of databases, decide which database is the best starting point.
Having done so, try searching for 2 keywords relating to your topic.
If you get no results, try synonyms that might have been used during this period. Examples: "rebellion" or "insurrection" instead of revolution
Use filters in the databases to limit to language, time period, and topical content of your choosing.
Since keywords so rarely work extremely well in primary source databases, filters are extremely important in finding useful materials.