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1 jan 2009 ano - 2009 Groupon offered its first group coupon for pizza

Descrição:

Subscribers purchase a deal that becomes available if a certain number of people sign up for the offer.

Adicionado na linha do tempo:

timeline project

2 out 2018

1

0

256

Data:

1 jan 2009 ano

Agora

~ 16 years ago

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