This simple solidity example is super useful for testing transaction processing. It globally sets a value by address which will default to sender but may also be specified.

Solidity AddressStore - Save a value globally on chain

tx not found, might have been dropped from mempool - the least satisfying error message in the known universe. Thanks Ethereum

Update I had to fix this post because g00g13 thinks this error is a soft 404 ... LOL

56- 120 - Tacitus is known as the "greatest historian of the silver age." He wrote several works, including Annals and Histories. Tacitus' works detailed the history of Rome from Tiberius through to Domitian, 14- 96 CE. Tacitus was also a Senator who disliked the abuses of power committed by the …

37- 68 - Nero was a Roman Emperor who is widely regarded to have been inconsequential in his rule. It is said that Nero "fiddled while Rome burned." This statement may indicate that Nero had a propensity for good spirit and lack of leadership. Nero was deposed after a Spanish Revolt …

4 BCE- 65 CE - Seneca was a politician and aristocrat who was educated in the philosophy of Stoicism. He was Nero's tutor and assisted in governing in the first five years of Nero's rule. Later Seneca began to withdraw from politics, however he could not extricate himself completely. In 65 …

The Five Good Emperors where Nerva, 96- 98 CE , Trajan, 98- 117 CE , Hadrian, 117- 138 , Antonius Pius, 138- 161 CE , and Marcus Aurelius, 161- 180 CE. The era of the Five Good Emperors is known as the Pax Romana, it was a time of peace and prosperity.