I bought my first bitcoin immediately I notice what is cryptocurrency after reading through the article of cryptocurrency online so I have to comprehend that cryptocurrency especially bitcoin is a feature currency, so I have no option than to purchase bitcoin in year 2015 and leave it in my wallet till a particular platform called MMM, is a investment platform popular know as ponzi scheme come in existence and took away my btc in 2016, so the btc I held could stay with me up to three years.