Answer:
The answer should be: Companies replaced hand-operated brakes with air brakes on trains.
Explanation:
You have to think how hard it was for trains to stop with hand operated brakes. Trains go fast, and not stopping in time can be dangerous. Hope this helped :)
Answer: he died in March 4, 1193 i believe
Explanation:
The Wagner act is also known as the National Labor Standards act
Answer:
It established structure for the peace treaty between Egypt and Isreal in March of 1979
Explanation:
