In what year did Nike's Air Jordan line first generate over $100 million in revenue, establishing it as one of the most successful celebrity product endorsements in history?

In the world of product endorsements, celebrities can transform a brand's fortunes overnight. One of the most legendary partnerships in marketing history created a seismic shift in athletic footwear and established the template for modern celebrity endorsement deals. This question explores the financial impact of that groundbreaking collaboration and how it changed both the sports marketing landscape and consumer behavior forever.

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1986 (second year of production)
1989 (fourth year of production)
1991 (year of Jordan's first NBA championship)
1984 (initial year of the Nike-Jordan contract)