<P> A transatlantic telegraph cable is an undersea cable running under the Atlantic Ocean used for telegraph communications . The first was laid across the floor of the Atlantic from Telegraph Field , Foilhommerum Bay , Valentia Island in western Ireland to Heart 's Content in eastern Newfoundland . The first communications occurred August 16 , 1858 , reducing the communication time between North America and Europe from ten days -- the time it took to deliver a message by ship -- to a matter of minutes . Transatlantic telegraph cables have been replaced by transatlantic telecommunications cables . </P>
<P> A transatlantic telegraph cable is an undersea cable running under the Atlantic Ocean used for telegraph communications . The first was laid across the floor of the Atlantic from Telegraph Field , Foilhommerum Bay , Valentia Island in western Ireland to Heart 's Content in eastern Newfoundland . The first communications occurred August 16 , 1858 , reducing the communication time between North America and Europe from ten days -- the time it took to deliver a message by ship -- to a matter of minutes . Transatlantic telegraph cables have been replaced by transatlantic telecommunications cables . </P>
where did the telegraph line be laid first
where did the telegraph line be laid first
from Telegraph Field , Foilhommerum Bay , Valentia Island in western Ireland to Heart 's Content in eastern Newfoundland
from Telegraph Field , Foilhommerum Bay , Valentia Island in western Ireland to Heart 's Content in eastern Newfoundland