Already almost a thing of the past, we often take for granted the option of landline telephones in this day and age - with mobiles taking over in massive fashion.
On January the 25th, 1915, a call was made from New York to San Francisco - marking a massive advancement in technology and something to keep in the history books for years to come. This task was completed by Alexander Graham Bell, who made the call to his assistant, Thomas Watson.
This technology was made functional thanks to a single copper circuit, spanning 6,800 miles and allowing one phone call to be made at a time - this advancement was likened to that of man landing on the moon, as according to Anthea Hartig, the executive director of the California Historical Society.
Set as a major public exhibition, their 1915 call was heavily publicized and celebrated across America and the globe. This was a massive contrast as compared to their privately-conducted call in 1876, set as a small experiment and known as the first phone call ever made.