Uber drivers have won the right to be classed as workers rather than self-employed.
The ruling by a London employment tribunal means drivers for the ride-hailing app will be entitled to holiday pay, paid rest breaks and the national minimum wage.
The GMB union described the decision as a "monumental victory" for some 40,000 drivers in England and Wales.
Uber said it would appeal against the ruling that it had acted unlawfully.
The San Francisco-based company had argued that its drivers were not employees but self-employed contractors.
The ruling accused Uber of "resorting in its documentation to fictions, twisted language and even brand new terminology", adding: "The notion that Uber in London is a mosaic of 30,000 small businesses linked by a common 'platform' is to our mind faintly ridiculous."
