The only known photographs of Ada Lovelace are being added to Britain's National Portrait Gallery after decades hidden from public view.

They preserve a record of how societies have chosen to frame women across time, what has been emphasised, what softened, and what quietly left out.

Cardano is a blockchain-based smart contract platform that aims to compete against similar platforms such as Ethereum, Tezos, and EOS, among others, through a more modular, layered protocol that runs ...