The battle was a victory for the British, but the long-term strategic consequences favored the Americans. Howe had, once again, failed to follow up on his success and allowed Washington to escape with his army, leading to their encampment
Washington's army retired to a winter camp at Valley Forge, Pennsylvania, where–with help from the Prussian General Von Steuben–it was able to further hone its skills and emerge the next year a superior force.
B: Samaritans
Check out Acts 8:15
Hope this helps!
Railroads on the Railways required tracks for the trains to run on them these tracks earlier made up of iron for its heavy duty but soon enough realise that iron was not a very good option for tracks. Meaning drawbacks of using iron for example rusting is it was realised that Steel was a better option in making railroads.
Steel being made out of iron is heavy duty material yet it is not much prone to rusting. Just addition of certain minerals and carbon in iron steel forging is done making it heavy duty material.