We’ve covered the Galaxy S II and Galaxy S III in previous Flashback articles, but now it's time for the original – the one that started it all. Well, ther was the I7500 Galaxy after which almost all of Samsung’s Android phones are named, but we mean the original S-series phone. The Samsung Galaxy S (I9000 if you want to compare model numbers) was announced in March 2010. Yes, the S series are over a decade old now. The phone became available in June of that year and would reach a total of 10 million units sold by January 2011. 4 million of those were sold in North America (more on that...
Source: https://www.gsmarena.com/flashback_the_original_samsung_galaxy_s_was_a_bestseller_that_spawned_an_empire-news-47243.php