One of the interesting things about languages is the way they change over time. In English, everything from spelling to vocabulary has 1  major changes over the years. In fact, to a modern speaker, the English of 1000 years ago looks like a 2  language!

The history of English dates back around 100 years. At that time, groups of Europeans 3  England, bringing their language with them. It developed into old English. Later in 1066, English was invaded by the Normans from France. The language went through an important shift leading to what we now call Middle English. Over the next 500 years, the language underwent 4  shifts, leading to modern English. As the language has developed over time, many things about it have changed.

5 is one of the most obvious areas. For example, in old English, people say "hus" and "mus". Now, we say house and mouse. These days there are many differences in the way English is pronounced in the U.S., India and elsewhere. When people live in groups separated by great distances, the 6 of change can be fast.

Vocabulary changes happen even more quickly. English has grown by borrowing words from languages such as French, Spanish and 7 , 8 . This often happens with types of 9 -for example, "tofu". Then there is slang which enters and 10 the language every year! Thirty years ago, one often heard people saying "groovy", meaning great. These days you rarely hear the word 11 on old TV shows or movies.

Because English is spoken by so many people worldwide, it really is an exciting time for the language. Just as American and British versions are always changing, so are versions 12  in Canada, 13  and elsewhere. At the same time, an entirely new version of English is appearing on the Internet with whole new 14  and writing styles. In a way, learning English is a never-ending process, even for native speakers! The atmosphere is as much a part of the earth as 15  its soil and water of its lakes, rivers and oceans.