What event leads to Gulliver's separation from the Brobdingnagians?

The event that leads to Gulliver's separation from the Brobdingnagians is his capture by a ship's crew. This significant moment occurs when he is accidentally discovered by sailors who are exploring the land. Despite his enjoyment of life in Brobdingnag, where everything is larger than he is and the inhabitants provide a unique perspective on human society, his capture marks a dramatic change in his journey. The crew takes him aboard their ship, and this transition propels Gulliver back into the broader world outside of Brobdingnag, setting the stage for further adventures and encounters in his travels.

While Gulliver does exhibit a desire to stay in Brobdingnag and appreciates the wisdom of its rulers, this is not what leads to his separation. Similarly, there is no record of him marrying a Brobdingnagian, and he does not flee during a conflict to leave this land. His ultimate departure comes through capture, which significantly influences the narrative trajectory of "Gulliver's Travels."