In the time period between the two world wars, and after world war two, the British army and the British government were doing many bad things to the Irish Catholic people in the Northern Ireland which led to the strengthening of the IRA who wanted to separate Northern Ireland from the United Kingdom.</span>
In order to ensure that they had the water they needed for their farms, the Inca built large canal systems to irrigate, or bring water to, their fields. The canals also brought water to the cities. Many streets had supplies of fresh water running through a canal.
