Explain

Explanation of the left hand menu:
===== <== Cornelis Drebbel's biography in English (with a link to the version in Dutch)
<== Main entrance page of this wiki
<== Slideshow of Drebbel's portraits
<== Information about Drebbel grouped into dossiers: 10 about his innovations and 9 diverse
<== Apart from Dossiers, pages have also been grouped into categories for further refinement
<== Queries offer the possibility to filter the information in terms of content, dates, language, location ...
<== Although we know a lot about Cornelis Drebbel, a few questions remain to be solved.
<== Opportunity to apply a Google search on this knowledge base.

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