Harriet Beecher Stowe · 1811
Heavy going at CET-4 level. Not unreadable — just not readable the look-every-word-up way.
Coverage = the share of words in the text you already know. The research gives two lines: 98% before independent fluent reading is realistic, 95% for the instructional level that needs support (Hu & Nation, 2000). Proper nouns are not counted as unknown — recognising that it is a name is enough; this book has 604 of them.
Advanced — read it with glosses. 182,678 words in total; at 150 words a minute for a non-native reader, about 20 h 18 min to finish. Average sentence length 16.9 words. Reaching 95% coverage on this book (the floor for readability) takes roughly 22,250 word families.
The opening of Uncle Tom's Cabin, word for word. Tap any word you don't know and its meaning here appears beside it — no sign-up, tap as often as you like.
Late in the afternoon of a chilly day in February, two gentlemen were sitting alone over their wine, in a well-furnished dining parlor, in the town of P——, in Kentucky. There were no servants present, and the gentlemen, with chairs closely approaching, seemed to be discussing some subject with great earnestness.
For convenience sake, we have said, hitherto, two _gentlemen_. One of the parties, however, when critically examined, did not seem, strictly speaking, to come under the species. He was a short, thick-set man, with coarse, commonplace features, and that swaggering air of pretension which marks a low man who is trying to elbow his way upward in the world. He was much over-dressed, in a gaudy vest of many colors, a blue neckerchief, bedropped gayly with yellow spots, and arranged with a flaunting tie, quite in keeping with the general air of the man. His hands, large and coarse, were plentifully bedecked with rings; and he wore a heavy gold watch-chain, with a bundle of seals of portentous size, and a great variety of colors, attached to it,—which, in the ardor of conversation, he was in the habit of flourishing and jingling with evident satisfaction. His conversation was in free and easy defiance of Murray’s Grammar,[1] and was garnished at convenient intervals with various profane expressions, which not even the desire to be graphic in our account shall induce us to transcribe.
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Ordered by unknown words per 100. Lower reads easier; to step up a level, pick a higher number.
Computed by Readii from the public-domain text (updated 2026-10-21), not estimated by hand. The Readii reading level is our own scale, anchored on unknown-word density; it is not the same system as Lexile or AR and does not convert directly. Unknown words are measured against the CET-4 ∪ Gaokao lists, so this is difficulty for a Chinese-speaking learner, not a native-child reading level.