#Ethereum Classic
Ethereum Classic is not a new cryptocurrency, but instead a split from an existing cryptocurrency, Ethereum. Both blockchains are identical in every way up until block 1920000 where the hard-fork to refund The DAO token holders was implemented, meaning that all the balances, wallets, and transactions that happened on Ethereum until the hard-fork are still valid on the Ethereum Classic Blockchain. After the hard-fork, the blockchains were split in two and act individually.
Cardano's Devs, Input Output HK, Release First Native Client for ETC. No More 51% Attacks?

Ethereum Classic is on the verge of a major upgrade: 20% of miners' rewards will be reserved for progress funding
Ethereum Classic (ETC) Activates Thanos Upgrade, Kraken Reports Another 51% Attack

Top-tier centralized exchange Kraken halted ETC withdrawals, confused network update with unintended split
Ethereum Classic Miners Implement MESS Security Solution. Why Is It Crucial For ETC?

Top-level altcoin mining pool 2Miners shares news on ETC MESS update implementation. What changes for average miners?
Ethereum Classic (ETC) Finally Proposes Instrument to Prevent 51% Attacks

A new design, MESS, will make all 51% attacks on Ethereum Classic (ETC) blockchain unreasonably expensive for malefactors
Charles Hoskinson Explains Why ETC Might Fail Without Setting Up Treasury System

IOHK’s Charles Hoskinson has published a video response after the recent blog post put out by ETC Labs CEO in which he rejects Cardano’s offer of help
Ethereum Classic (ETC) Has No Reason to Exist: Weiss Crypto Ratings

Weiss Crypto Ratings agency has stated that Ethereum Classic (ETC) has clearly demonstrated signs of being a "failing cryptocurrency" which "has no reason to exist"
Ethereum Classic (ETC) Network Collapses Again, 51% Attack May be Involved

Ethereum Classic (ETC) miners disclosed that the system experienced an unintended chain split, which may have been caused by a 51% attack.
Reasons Behind End of Ethereum Classic (ETC) Support Unveiled by OpenEthereum Leader

Artem Vorotnikov, lead developer of OpenEthereum client and Gnosis PM, announced that he has proposed to stop the support of Ethereum Classic (ETC) blockchain. Here’s why
Ethereum Classic (ETC) Two Hardforks, New Roadmap and More: ETC Core Team Shares Dev Update for Q1-Q2, 2020

Ethereum Classic (ETC) team shared summary of all project achievements that occurred in Q1-Q2, 2020, both in coding and promotion spheres