In 1792, King Louis XVI was tried before the National Convention where he was found guilty of having conspired against the liberty of the nation. In January of 1793, he was put to death by the Guillotine.
News of the death of the king was received with great joy and celebration throughout Paris and France. This was seen as a great moment and a guarantee that the revolution would now go forward.
A lot of people mistake a short memory for a clear conscience.
The oldest man-made structure still existing is the central edifice of the 4,600-year-old tomb built at Sakkara, Egypt.