They landed on 2 February 1929 and claimed the island for Norway.
Haiti, which has claimed sovereignty over Navassa since 1801, also claims the island in its constitution.
It is disputed territory, with both provinces claiming the island.
"No attempt was made to claim the island on behalf of the monarch," he said.
Comoros continues to claim the island, while criticising the foreign military base there.
The posts with the plaques would be erected, claiming the island as British.
Soon after his death, Hungary claimed the island again.
Vijaya claimed Tambapanni his capital and soon the whole island come under this name.
For the record every person who has held this office swore an oath to uphold the constitution which claimed the entire island of Ireland.
China still claims the island as part of its territory.