Our most notable contributions to the Wikipedia are listed here.
My first contribution was on 24 July (2003) at 16:23, on the phase page, which still remains a modest article as of today, given the importance of this concept.
My only contribution in 2005 to the English Wikipedia was on the disambiguation page of Cornell, adding the Nobel prize physicist Eric Allin Cornell (so it was a slow Wikipedia year for me, in this language). Humbled by the ephemerous nature of one's input, slowly dissolving throughout the years, I let myself be engrossed more with my own work and had a major gap of non-active contributions in the years 2015―2019. In 2020, however, I stumbled on the shocking fact that the Quattro Formaggi pizza had no entry in the encyclopedia! I was investigating the case as part of my own research on the Art of pizza-making in the kitchen (this during the Covid pandemic). It appeared that this variation being so famous and widespread, its origin got lost in history, prompting me to write:
I studied the topic in more detail and could assemble enough material to honor the topic with this item of choice. This may be, ultimately, my most important contribution to the Wikipedia! I otherwise kept a small but nonzero rhythm of participation, from minor edits to more substantial inputs, having created the following pages in the English Wikipedia to date:
and in the French Wikipedia: