In 1827, Harrison Grey Dyer used a form of the telegraph on long island, New York, but he gave up the idea. The problem facing most inventors was finding a good source of electricity to make the telegraph work.

• 1827年，哈里森·格雷·戴尔曾在纽约长岛使用了一种电报形式，但是他放弃了这个想法。当时大多数发明者面临的问题是寻找一个使电报工作的好电源。