Teaching & Learning

If you think English spelling is confusing — why "head" sounds nothing like "heat," or why "steak" doesn't rhyme with "streak," and "some" doesn't rhyme with "home" — you can blame the Great Vowel Shift. Between roughly 1400 and 1700, the pronunciation of long vowels changed. "Mice" stopped being pronounced "meese." "House" stopped being prounounced like "hoose." Some words, particularly words with "ea," kept their old pronounciation. (And Northern English dialects were less affected, one reason they still have a distinctive accent.) This shift is how Middle English became modern English. No one is sure why this dramatic shift occurred. But it's a lot less dramatic when you consider it took 300 years. Shakespeare was as distant from Chaucer as we are from Thomas Jefferson.

By my work [CC BY-SA 3.0], via Wikimedia Commons
Here's how the English language got started. After Roman troops withdrew from Britain in the early 5th century, three Germanic peoples — the Angles, Saxons, and Jutes — moved in and established kingdoms. They brought with them the Anglo-Saxon language, which combined with some Celtic and Latin words to create Old English. Old English was first spoken in the 5th century, and it looks incomprehensible to today's English-speakers. To give you an idea of just how different it was, the language the Angles brought with them had three genders (masculine, feminine, and neutral). Still, though the gender of nouns has fallen away in English, 4,500 Anglo-Saxon words survive today. They make up only about 1 percent of the comprehensive Oxford English Dictionary, but nearly all of the most commonly used words that are the backbone of English. They include nouns like "day" and "year," body parts such as "chest," …

English, like more than 400 other languages, is part of the Indo-European language family, sharing common roots not just with German and French but with Russian, Hindi, Punjabi, and Persian. This beautiful chart by Minna Sundberg, a Finnish-Swedish comic artist, shows some of English's closest cousins, like French and German, but also its more distant relationships with languages originally spoken far from the British Isles such as Farsi and Greek.

Roald Dahl, who was born almost 101 years ago, has sold more than 250 million books worldwide. What made his writing so successful?