From the period of 1600, the canton consisted of a St George's Cross representing the Kingdom of England. With the Acts of Union 1707, the canton was updated to be the new Union Flag—consisting of an English St George's Cross combined with a Scottish St Andrew's cross—representing the Kingdom of Great Britain. After the Acts of Union <answer>1800</answer> that joined Ireland with Great Britain to form the United Kingdom, the canton of the East India Company flag was altered accordingly to include a Saint Patrick's Saltire replicating the updated Union Flag representing the United Kingdom of Great Britain and Ireland.
in wat year did  ireland join with great britian offically?
1800