In an alternate universe, Portuguese explorer Ferdinand Magellan survives the Battle of Mactan and reports back to Charles, HRE, of his discoveries. Not only were the islands under the rights to Spain, but the archipelago had become the homes of peoples and civilizations outside the indigenous populations that have gone extinct. Some that he knew, such as the ancient Egyptians, Athenians, Spartans and Romans, to peoples he weren't aware existed, such as the Carthaginians, Aksumites, Vikings, Japanese, Mongols, Chinese, Native Hawaiians, Aztecs, Incas, Maori and Aboriginal Australian groups. It wouldn't be long for the rest of Europe, from England, France, Portugal, and other areas such as the Spanish Netherlands, Kalmar Union, the many kingdoms of the Italian Peninsula and the Ottomans.