The year before:
1st February 1917: Germany begins 'Unrestricted Submarine Warfare' and starts to attack any ship that is carrying the enemy flags, even if it is a civilian ship.
6th April 1917: USA declares war on Germany.
20th November 1917: British tanks win a major victory at the battle of Cambrai. It is the first time that a battle can said to have been won by tanks.
The first tanks got their name because some soldiers who were guarding them told other soldiers that they were metal 'water tanks' to keep the new weapon a secret.
By 1917, the war had reached a stalemate, where neither side had the advantage. The fighting in the trenches had been going on for 3 years and many men were still in the same place where they had started. In April, the USA joined the war, meaning that there were now many nations facing Germany and her allies called 'The Central Powers'.
The year after:
If you were a child in this year you may have had to take on a part time job to help to earn some money for your family. Many boys and girls took extra jobs to help their family to survive. One of the most difficult jobs was a telegram boy, which involved delivering telegrams informing people that their son or Father had been killed.
A British tank