Where and when did child labour start?

Child labour wasn't considered a threat to the nations until in the Great Britain around the 1830 when the British decided to consider it a threat. From then on the other countries started agreeing with the british and by today almost every country has agreed. This way the ILO or International Labour Organization estimated if we keep those children out there working only by the end of 2016 we will be able to exclude only the children that work in hazards modes will be free. That means that there will still be kids out there dyeing so that is why we have to hurry the process, so it will take us less time and also we can save all of them not only half.