What Happened to First Transatlantic Telegraph Cable?
The First Transatlantic Telegraph Cable was a monumental 19th-century engineering feat that, after several failed attempts, successfully connected Europe and North America via telegraph in 1866, drastically reducing communication time from weeks to minutes. While the initial 1858 cable failed quickly, the permanent 1866 connection ushered in an era of instant global communication, laying the groundwork for all subsequent transatlantic data networks, including today's fiber-optic internet cables. Its legacy continues to be celebrated as a pivotal moment in technological history, with modern efforts like the removal of later cables (e.g., TAT-8 in 2026) still tracing their lineage back to this pioneering achievement.
Quick Answer
The First Transatlantic Telegraph Cable, a vision championed by Cyrus West Field, was initially laid in 1858, enabling the first instantaneous communication between Europe and North America, though it failed after just three weeks. After further attempts and significant technological improvements, a robust and permanent cable was successfully laid in 1866 by the SS Great Eastern, followed by the recovery and completion of the 1865 cable, establishing two operational lines. These cables revolutionized global communication, commerce, and diplomacy, making the world feel much smaller. Today, the original cables are long defunct and lie on the ocean floor, but their legacy endures as the foundational step for the vast network of fiber-optic cables that power the modern internet, with later generations of transatlantic cables still being managed and recycled as recently as 2026.
📊Key Facts
📅Complete Timeline15 events
Samuel Morse Proposes Transatlantic Cable
American inventor Samuel Morse suggests the possibility of a transatlantic telegraph cable.
Atlantic Telegraph Company Formed
Cyrus West Field secures a charter and forms the Atlantic Telegraph Company to undertake the ambitious project.
First Cable Laying Attempt Fails
The first attempt to lay the cable using HMS Agamemnon and USS Niagara fails when the cable breaks after a few days.
Cable Lands in Newfoundland and Ireland
After further attempts, the cable is successfully landed in Trinity Bay, Newfoundland, and Valentia Bay, Ireland, completing the physical connection.
First Official Telegrams Exchanged
Queen Victoria sends a congratulatory message to U.S. President James Buchanan, marking the first official transatlantic communication.
1858 Cable Fails
The initial cable ceases to function after only three weeks, primarily due to excessive voltage and manufacturing flaws, leading to public and investor disillusionment.
SS Great Eastern Attempts New Cable
The massive SS Great Eastern attempts to lay a new, improved cable, but it breaks and is lost mid-ocean, though its location is recorded.
Permanent Transatlantic Cable Completed
The SS Great Eastern successfully lays a new, durable cable from Valentia Island to Heart's Content, establishing the first permanent transatlantic telegraph link.
1865 Cable Retrieved and Completed
The lost 1865 cable is successfully located, retrieved, and spliced, creating a second operational transatlantic telegraph line.
Duplex Transmission System Introduced
The Duplex transmission system, enabling two messages to be sent simultaneously, further revolutionizes telegraphy.
First Transatlantic Telephone Cable (TAT-1) Laid
The first transatlantic telephone cable, TAT-1, goes live, marking the shift from telegraph to voice communication across the Atlantic.
First Transatlantic Fiber-Optic Cable (TAT-8) Completed
TAT-8, the first fiber-optic cable across the Atlantic, is completed, dramatically increasing bandwidth and data transmission speeds.
TAT-14, Last of TAT Series, Retired
TAT-14, the last of the Trans-Atlantic Telephone (TAT) series of submarine cables, is retired from service.
TAT-8 Cable Removal and Recycling Underway
Subsea Environmental Services begins removing the TAT-8 fiber-optic cable from the seabed for recycling, clearing the way for new communication cables.
Cross Atlantic Communication Day Observed
Cross Atlantic Communication Day is observed, commemorating the 1866 achievement and celebrating the ongoing evolution of global connectivity.
🔍Deep Dive Analysis
The ambition to connect Europe and North America with a telegraph cable emerged in the mid-19th century, driven by entrepreneurs like Cyrus West Field. Before this innovation, messages between the continents took weeks to travel by ship. The project began in 1854 with the formation of the Atlantic Telegraph Company, aiming to lay a cable from Valentia Island, Ireland, to Newfoundland.
Initial attempts in 1857 and 1858 were fraught with challenges, including cable breaks and severe storms. The 1858 cable, though successfully laid and operational by August 16, 1858, was short-lived. It transmitted congratulatory messages between Queen Victoria and U.S. President James Buchanan but failed after only three weeks due to faulty manufacture, storage, handling, and excessive voltage applied by an engineer attempting to speed up transmissions. This failure undermined public confidence and financial backing, leading to a temporary halt in efforts.
Undeterred, Field and his team persevered, learning from past mistakes. Significant technological advancements in cable design and laying techniques were implemented. The massive steamship SS Great Eastern, the largest vessel of its time, was employed for subsequent attempts. In 1865, another cable was laid, but it broke and was lost mid-ocean. However, the experience gained proved invaluable.
The turning point came in 1866. On July 13, the Great Eastern set out again, and on July 27, 1866, a new, more robust cable was successfully laid from Valentia Island to Heart's Content, Newfoundland, establishing a stable and fully operational transatlantic link. Remarkably, the team also managed to locate, retrieve, and splice the broken 1865 cable, resulting in two working transatlantic telegraph lines by September 1866.
The consequences were profound. Communication time between continents was slashed from weeks to minutes, revolutionizing global commerce, diplomacy, and personal connections. It fostered economic integration, accelerated news dissemination, and significantly impacted financial markets. The success of these cables paved the way for a global network of submarine cables, connecting major landmasses worldwide.
As of 2026, the original 1858 and 1866 telegraph cables are no longer operational and have long since succumbed to the ocean environment, with their gutta-percha insulation attacked by marine life and metal components corroded. However, their historical significance is immense. They are recognized as the direct precursors to modern transatlantic communication infrastructure. Today, the Atlantic Ocean floor is crisscrossed by numerous fiber-optic cables, forming the backbone of the internet, capable of transmitting vast amounts of data at light speed. These modern cables, such as the Trans-Atlantic Telephone (TAT) series, continue to evolve. For instance, the TAT-8, the first fiber-optic transatlantic cable laid in 1988, was taken out of service in 2002 due to an unrepairable fault and is currently being removed from the seabed for recycling in 2026 to make way for new cables, highlighting the ongoing evolution and maintenance of this critical global network that began with the pioneering efforts of the First Transatlantic Telegraph Cable.
What If...?
Explore alternate histories. What if First Transatlantic Telegraph Cable made different choices?