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hi steemians i would like to share 3 bigggest airdrops which made rich if participates hold it for some time is given below
1] ONTOLOGY
A) Conducted:< December,2017 2] XLM A)Conducted: 2014 3] POLYMATH Thanks for support me
B) Reward:</ 1000Ont per person who had subscribed to their Newsletter
(Check their >official post Here/a>)
C) Value: 10,000$(According to
April,2018 price]
3,500$(According to Current Price )
B)Reward: 6,000XLM per person
(Check it <here )
C)Worth: 5,100$ (According To January,2018 Price)
1,740$ (According to current PRICE] 
A)<Conducted:</ January,2018
B)<Reward</: 250POLY per person(Check their Official tweet Here)
C)<Value: <358$ (According to February,2018 price chart)
88$ (According to current price)
@MONEYOPTION