I guess I haven't been playing close attention lately, but I recently noticed this edit you made to the Kilwa Kisiwani page and wanted to bring a couple of things to your attention.
You changed "pale in comparison" to "pale by comparison." "Pale in comparison" is a perfectly acceptable way of saying something is less impressive, noteworthy, or desirable than something else, and in the U.S., I see it used much more often than "pale by comparison." (See this site for details.) This is probably a dialectical issue, but the original phrasing was correct.
You changed "It is also available earlier and more cheaply than" to "It is also available earlier and cheaper than." The latter is grammatically incorrect at worst and stylistically questionable at best - "cheap," as an adjective, can only modify a noun, so the adverbial form ("cheaply") has to be used if it's modifying "available." It's acceptable for "cheap" to modify "it," but then you've got two consecutive adjectives that modify different words, which doesn't employ parallel structure and results in confusion about which word "cheap(ly)" is supposed to modify. I changed the wording of this sentence for style and clarity.
I know these are niggling details, but as someone who teaches college ESL and composition courses, I'm a bit of a stickler for proper grammar and punctuation. If you have any questions or counterpoints, please let me know.
My original edit used "pale in comparison", I'm not sure why I changed it to "by". I guess at first I used "pale" as an adjective so it goes with "in", but then it was changed to be used as a verb so I decided to use it with "by". I guess that was my reasoning then.