Answer:
It was historically significant because it was a victory for the workers. It was established by the supreme court that labor unions are not and can't be forbidden and that workers can unionize to protect themselves. This was important worldwide also because now workers from other countries saw that it was possible to win something like this.
Explanation:
Hanson Gregory, an American, claimed to have invented the ring-shaped doughnut in 1847 aboard a lime-trading ship when he was 16 years old. Gregory was dissatisfied with the greasiness of doughnuts twisted into various shapes and with the raw center of regular doughnuts.
There were many problems. I will name one. Engineering, when building the Panama canal this thing on this large of a scale was new. So the engineering was complicated.
The Strategic Arms Reduction Treaty (START) number one was designed to
reduce the number of nuclear weapons. It was signed July 31, 1991 and went into full force by 1994. Eventually it was to control and remove warheads and nuclear weapons. Start 1 achieved an 80% removal which was considered to be a success. Other treaties followed.