In what year did the Treaty of Lisbon enter into force?

In what year was the Maastricht Treaty establishing the European Union signed?

In what year did the Berlin Wall fall?

In what year did euro banknotes and coins enter circulation?

In what year was the Soviet Union formally dissolved?

In what year was Magna Carta first sealed by King John of England?

In what year did the Rome Statute of the International Criminal Court enter into force?

In what year was the Rome Statute of the International Criminal Court adopted?

How many member states did the United Nations have on 1 January 2025?

What is the ERC number of account abstraction using an alt mempool and the EntryPoint contract?

In what year did the Ethereum beacon chain launch (its genesis)?

What minimum number of genesis validators (MIN_GENESIS_ACTIVE_VALIDATOR_COUNT) did the beacon chain require to launch?

What is the EIP number of proto-danksharding (shard blob transactions)?

What is the ERC number of the non-fungible token standard?

What is the ERC number of the multi-token standard?

At what Ethereum mainnet block number did the DAO hard fork activate?

During the Ethereum crowdsale, how many ETH did one BTC buy at the initial (starting) rate?