user124583: I am doing a research and for that i need all successful BTC transactions that happened in Dec,2017. Is there a way to download this data ?

user95422: You can use the services of Blockchair for that, here is all the transaction that happened between the 1 and 31 december 2017 on the bitcoin blockchain:
https://blockchair.com/bitcoin/transactions?q=time(2017-12-01..2017-12-31)
For download you can scroll to the date you want here: https://gz.blockchair.com/bitcoin/transactions/ and download each day of december

124583: <p>I am doing a research and for that i need all successful BTC transactions that happened in Dec,2017. Is there a way to download this data ?</p>
 95422: <p>You can use the services of Blockchair for that, here is all the transaction that happened between the 1 and 31 december 2017 on the bitcoin blockchain:</p>
<p><a href="https://blockchair.com/bitcoin/transactions?q=time(2017-12-01..2017-12-31)" rel="nofollow noreferrer">https://blockchair.com/bitcoin/transactions?q=time(2017-12-01..2017-12-31)</a></p>
<p>For download you can scroll to the date you want here: <a href="https://gz.blockchair.com/bitcoin/transactions/" rel="nofollow noreferrer">https://gz.blockchair.com/bitcoin/transactions/</a> and download each day of december</p>
