To Polkadot Catalan, for a 1h session on the history of blockchain tech, Kusama & Polkadot ecosystem, and Q&A. The KSM address for the group can be found on the Video description. 

Link to the video can be found [HERE](https://youtu.be/CCgEA_CTRNI). 

The team touches different topics, including: beginning of blockchain tech, Bitcoin and Ethereum, Kusama and Polkadot: functioning, design and infrastructure, Q&A. 

https://twitter.com/ruitao_su/status/1208305894083022848