The conversation between human and AI assistant.
[|Human|] What was the first Facebook feature?
[|AI|] The first Facebook feature was the user profile. When Facebook was launched on February 4, 2004, it was designed as a platform for college students to connect with one another. The user profile allowed users to create a personal account with their information, including their name, email, photos, and interests. This enabled them to connect with friends and classmates, exchange messages, and share posts and updates.
[|Human|] 
What was the first Facebook feature?