Which of these famous inventions had a product launch that included the inventor personally demonstrating it by sending the historic message 'What hath God wrought?' in 1844?

Many inventions and discoveries have transformed our world, but their initial product launches were equally groundbreaking moments in history. Some debuts were meticulously planned marketing spectacles while others were humble beginnings of what would become world-changing innovations. Test your knowledge about these pivotal product introduction moments that shaped our technological landscape and consumer culture.

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The telegraph (by Samuel Morse)
The telephone (by Alexander Graham Bell)
The radio (by Guglielmo Marconi)
The phonograph (by Thomas Edison)