3

James Cook

3

Harbors of the World

4

Maddy's Oregon Diary

3

Famous Explorers

4

Maddy's New Jersey Diary

4

Maddy's Pennsylvania Diary

3

Power

3

Bays of the World

4

Maddy's Virginia Diary

4

Maddy's Ohio Diary

3

Archipelagos of the World

4

From the American Revolution to the Civil War

3

William Shakespeare

4

The White House

4

Chip's Tips on Australia

4

Maddy's Rhode Island Diary

4

Maddy's North Carolina Diary

4

Chip's Tips on New Zealand

3

Work

3

Trenches of the World

4

Maddy's Washington Diary

3

Straits of the World

4

An Introduction to the History of the United States of America

4

Chip's Tips on Canada

4

Early North American Settlers

4

Maddy's South Dakota Diary

3

Edmund Hillary

3

Capes and Peninsulas of the World