Survivors were affected economically because the tsunami destroyed lots of infrastructure that was crucial to the functioning of the economy, such as telephone poles, water works, etc. It affected them socially because it is obviously devastating to endure that kind of loss of life. It affected them environmentally because lots of raw sewage was leaked onto the streets, leading to health issues.
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They passed the Land Ordinates of 1785 and the Northwest ordinates of 1787
Around 1900 the British empire ruled almost 1/4 (One-Fourth) of the land surface of the globe.