What order is the chronicals of Narnia written?

The actual order in which the Chronicles of Narnia were written, and originally published by MacMillan is:

• 1950: The Lion, the Witch and the Wardrobe
• 1951: Prince Caspian
• 1952: The Voyage of the Dawn Treader
• 1953: The Silver Chair
• 1954: The Horse and His Boy
• 1955: The Magician's Nephew
• 1956: The Last Battle

When Harper-Collins took over publication, Lewis's stepson Douglas Gresham recommended they be published according to Narnian chronology. Thus, the new order became:

1. The Magicians Nephew

2. The Lion the Witch and the Wardrobe

3. The Horse and His Boy

4. Prince Caspian

5. The Voyage of the Dawn Treader

6. The Silver Chair

7. The Last Battle