Acknowledgements and attributions
Kuma Learn, a Tugboat Coding product, is an independent project made by Mario Hayashi. The project has taken many months to create and many more will be spent to continuously keep improving it! The data used in Kuma Learn comes from a number of projects. Kuma Learn is extremely thankful to the creators and contributors of these projects, who have made projects like Kuma Learn possible.
Data
JMdict
JMdict is a project created by Jim Breen. It's a general, Japanese-English dictionary managed by the Electronic Dictionary Research and Development Group, Jim Been and a team of volunteers. The vast majority of words that appear in Kumadex come from JMdict.
Tatoeba
Example sentences that appear in Kumadex come from the Tatoeba project, which is a large database of sentences and translations.
Wanakana
Wanakana is an open-source Javascript library for detecting and transliterating between Hiragana, Katakana and Romaji.
Kuroshiro
Kuroshiro is an open-source Javascript library for converting Japanese sentences to Hiragana, Katakana or Romaji with furigana.
Centre for Translation Studies, Leeds University
The Centre for Translation Studies of Leeds University offers a word frequency list based on their Japanese language corpus. This list is used by Kumadex to order words by their frequency in Japanese text that the Centre for Translation Studies has studied.
Wikitionary
Wikitionary's JLPT word list has been used to help select words to include in this mini-eBook.
Genki
Some words reference their appearance in Genki, a textbook series loved by many Japanese language learners.
Images
We give credit where credit is due! Each image is annotated with attributions, where applicable.
Pexels
A vast majority of the excellent pictures shown in Kumadex are made by photographers and contributors of Pexels.
Wikimedia
Wikimedia is another source of images that appear in Kuma Learn.
Flickr
A small number of images are also sourced from Flickr.