What was Marconi's 1907 milestone, and why did it matter commercially?

On October 17, 1907, Marconi opened the first commercial transatlantic wireless telegraph service between Nova Scotia, Canada, and Ireland.

* Wireless pioneer milestones, 1895 to 1926. *

This was a game-changer for several reasons. Before this, transatlantic communication depended entirely on fragile undersea telegraph cables that were expensive to lay and frequently broke. Marconi's wireless service provided a reliable alternative.

The base stations required for this were massive, with antennas 30 to 100 meters tall. Nothing like the compact cell towers we see today.

The progression tells a story:

• 1895: 28 km, proof of concept.
• 1907: Transatlantic, commercial viability.
• 1915: First wireless voice communication between New York and San Francisco.
• 1926: First telephone on a train between Hamburg and Berlin, using wires parallel to the railway tracks as antennas.

Each step pushed wireless communication further: longer range, richer content, and greater mobility.

Go deeper:

• History of mobile phones (Wikipedia) — situates the 1907 transatlantic service and the 1915/1926 voice milestones in the arc from pre-cellular radiotelephony to today's networks.