Back in Manhattan, Salinger took a writing class at Columbia University, taught by Whit Burnett, editor of the literary magazine Story.

Sandberg was born in 1969, in Washington, D.C. Her family moved to North Miami Beach when she was two.

Lawyers for Mr Zuckerberg and Facebook dismiss Mr Ceglia's claim, arguing that the e-mails he has produced to support it are fakes.