Nowadays I don't do much editing in Wikipedia, and when I do, I focus mostly on scientific articles, images and minor things. Throughout the years I have collaborated with many professional and friendly wikipedians, and I am very thankful for this fruitful and interesting experience.
The last couple of years I have been heavily studying World History, and therefore I have tried to contribute to historical articles in the best way I can, and World War I & II in particular. Why am I so interested in history nowadays? Well, because I have a strong desire to find out in detail what has happened, read different opinions on why in order to build my own view on the events of humankind.