Minecraft wiki entry for Timeline_of_events, associated text: 13 – Java: "Sound Update" released.
17 – PE: First iOS release (v0.1.2).
18 – MINECON 2011 is held at Mandalay Bay, Las Vegas, Nevada. Over 4,500 people from 24 countries attend to it. On the same day, Minecraft 1.0.0 for Java Edition is officially released; the price is now €20.00.
24 – First snapshot released (11w47a). This marks the beginning of semi-weekly development versions.