When doing genealogical research in the Netherlands, it becomes apparent pretty soon that the year 1811 is an important one. In (or around) that year, a lot of the sources we as genealogist use changed. Primary sources became centralized, because of the French occupation of the Netherlands by Napoleon. But the French occupation had its influence on other sources as well, albeit sometimes indirectly. An example is the fact that around the year 1811 notarial records become available, because for the first time this profession is seen in the Netherlands.
In light of this, it’s very important to know if you are researching before or after the year 1811. I plan on doing a series here about genealogical sources in the Netherlands, and there you’ll see the division come through quite clearly. For now, it’s just something to take note of.