The conversation between human and AI assistant.
[|Human|] From the passage provided, extract the date when the iPhone was announced publicly for the first time.
[|AI|] Then-Apple CEO Steve Jobs publicly announced the first-generation iPhone on January 9, 2007, at the Macworld 2007 convention at the Moscone Center in San Francisco.
[|Human|] 
From the passage provided, extract the date when the iPhone was announced publicly for the first time.