It has been incredible driving over the East River that connects the boroughs of Manhattan and Brooklyn in New York. Of course, it's the Brooklyn Bridge. It is beautiful to visit during the day but it is more beautiful and glamorous at night. Brooklyn Bridge is one of the oldest bridges in the United States that attracts the attention of visitors. It was a great achievement for the United States, which was completed in early 1883 after 14 years of hard work. The most important thing is that it is the first steel wire suspension bridge. It is a safe passage for millions of travelers, tourists, trains, cars, bicycles and other means of transport. Because of its exceptional historical significance, in 1964 it was designated a National Historic Landmark and a National Historic Civil Engineering. About 600 workers were involved in the construction and the total cost at the time was $15 million. As it was built after the Civil War, when racism between people was very serious. The workers were in reality poor and immigrant people. So they were getting a very lower wage, like $2 a day or something. They also worked in very uncomfortable conditions, for example in very hot weather, in the rain, under water, which made many of them sick. They also get many types of normal or serious illnesses, such as headaches, itchy skin, nosebleeds, and slow heart rate. More than 100 workers suffered numbness, slurred speech, joint pain, paralysis, convulsions and some died. There were very few safety regulations for them at that time. Their contribution enabled the construction of the bridge. From the first day of its opening, around 250,000 people passed through it and witnessed a great invention. A week after opening, approximately 20,000 people were on the bridge when a false panic broke out, announcing that the bridge was about to collapse. Then people started running and twelve people were crushed to death and many people