Clover Island
From Heyuri Historical Society

According to Tachi's account of history, the island was established somewhere near turn 360 - possibly 365.
Island stuff
The land was chosen by President Cosmo when she happened upon a land where all it's grass was replaced by clovers, which has given the island extreme luck ever since [in everything except oil GETS]
Nobody knows how a land with no factories and giant farms is as wealthy as it currently is, but the populace yet again thank the lands ancient luck for everything, and as a show of thanks have vowed to put clovers on quite literally everything they possibly can (´ω`)