We were watching a recorded episode of Bettany Hughes’ series ‘Treasures of the World’, which focussed on Oman
https://www.channel4.com/programmes/bettany-hughes-treasures-of-the-world/on-demand/77830-003
Approaching Muscat harbour, Bettany pointed out what she described as ‘monumental bits of graffiti’ left by British sailors – being the names of their ships, in stone on the hillside.
It’s the same principle as the ship’s names left on the hillside by Loch Eriboll, Sutherland
https://www.hmshood.org.uk/hoodtoday/eriboll.htm
We like to make, and leave, our mark