Repliescrypto.defrag (51)in bitcoin • 2 years agoRE: Bitcoin falls below $20,000 for the first time since mid-July.We've shared and upvoted your post on @crypto.defragsteem.history (78)in health • 2 years agoRE: The growth of cancers is revealed by genetic mapping of tumours.Hello welcome to Steemit world! I'm @steem.history, who is steem witness. This is a recommended post for you. Newcomers Guide and The Complete Steemit Etiquette Guide (Revision 2.0) and…