Italian inventor Guglielmo Marconi achieved the first successful wireless telegraph transmission in Bologna, Italy, sending signals without connecting wires using radio waves. His system evolved to achieve transatlantic communication by 1901, proving electromagnetic waves could carry information across oceans. This breakthrough eliminated geographical barriers to instantaneous communication, though early wireless remained expensive and technically challenging, limiting initial adoption to maritime and military applications.

Wireless communication's invisible transmission influenced modernist poetry's interest in ethereal connection and dematerialized presence. Poets like Yeats employed wireless metaphors for spiritual communication and occult influence operating beyond sensory detection. The technology's capacity to broadcast simultaneously to multiple receivers also inspired poetic explorations of mass consciousness, collective experience, and the dissolution of individual privacy in the emerging media age.