I still have to add a few sentences on history. Thank you very much.

1) War with France broke out in 1337 when Edward III claimed the crown of France because his mother was the French king's sister. This was the beginning of the Hundred Years' War, which was to last until 1453.
2) One of the most famous victories was gained by Henry V. Under the reign of Henry VI the French managed to drive the English out of France and by 1453 the English kings ad lost all their continental possessions except Calais.
3) Even after the French wars, fighting continued in England between the rival families of Lancaster and York. These are known as the Wars of the Roses because the symbol of the House of York was the white rose while the emblem of the House of Lncaster was the red rose.
4) The wars ere finally won by Henry Tudor, of the Lncastrian party, who defeated Richard III, the Yorkist king, and became Henry VII of England.

2. commas needed

3. comma needed

4. read aloud

1) The Hundred Years' War was a long-lasting conflict between England and France that started in 1337. To further explain the cause of the war, Edward III, the King of England, claimed the French crown. He based his claim on his lineage as his mother was the sister of the French king. This assertion led to tensions and eventually resulted in open warfare between the two nations. The war lasted for 116 years, finally coming to an end in 1453.

2) During the Hundred Years' War, one of the most famous victories for the English was achieved by Henry V. He achieved a significant triumph in the Battle of Agincourt in 1415. However, despite these successes, the fortunes of war shifted, and the French managed to drive the English out of France under the reign of Henry VI. By the end of the conflict in 1453, the English kings had lost all their continental territories, except for the town of Calais.

3) Even after the Hundred Years' War, England faced internal conflicts known as the Wars of the Roses. These wars took place between the rival factions of the Lancaster and York families. The name "Wars of the Roses" comes from the symbols associated with each house, with the House of York represented by the white rose, and the House of Lancaster represented by the red rose. This conflict occurred from 1455 to 1487 and had a significant impact on the political landscape of England.

4) The Wars of the Roses came to an end when Henry Tudor, a member of the Lancastrian party, emerged victorious. Henry Tudor, known as Henry VII, defeated Richard III, the Yorkist king, in the Battle of Bosworth Field in 1485. With this victory, Henry Tudor brought an end to the instability and conflict that had plagued England for several decades, establishing the Tudor dynasty as the ruling family. This marked the beginning of a new era in English history.