thejapanshop.com/products/japans-jidai-learn-about-the-eras-of-japan-digital-download
A five-volume digital bundle of Japanese essays about historical periods, with full furigana, English translations, native audio at slow and normal speeds, and Anki flashcard decks for vocabulary.
Reading practiceListening and audioVocabularyHistoryGraded readersFuriganaSpaced repetitionIntermediateBeginnerListening practiceHiraganaFree