Complex sentence: This time line shows how nature was forgotten in a bid to'conquer' the Soar in an effort to better the British economy, but how once the Soar was found to be unusable as an economic asset it was abandoned.
Split into simpler sentences: This time line shows how nature was forgotten in a bid to'conquer' the Soar in an effort to better the British economy. But how once the Soar was found to be unusable as an economis asset it was abandoned.