When was the iPad discovered?

The iPad wasn't "discovered" in the same way a new element or scientific phenomenon is. It was invented by Apple, and it was first announced on January 27, 2010, and released on April 3, 2010.

• Se hai acquistato un iPad dall'Apple Store potrebbe restituirlo e ottenere un rimborso? 
• In che modo l'iPad raggiunge il suo scopo?