Allow me to explain. This was 7 years ago, and at that time there were few content related to Bangladesh on Wikipedia. However, we had a nationally funded encyclopedia (Banglapedia) published by the Asiatic Society of Bangladesh. Back in 2005, I initiated a discussion with Asiatic Society to get their content released to Wikipedia under GFDL. As these talks were going on, I had seeded a few articles from text from Banglapedia, and had then paraphrased or rewrote the text in my own words, and cited back to the corresponding Banglapedia article as reference. If you look at the evolution of several articles (not the ones listed above), you can see the workflow. However, for some articles, it seems that I have missed paraphrasing or rewriting them. If you are looking to identify more of such possible articles, I suggest you look at the ones written in summer 2005 timeframe. I will do my own search and actively assist in rewriting the articles to remove copyright issues. Thanks.