April 1st, Beijing Time, according to the UK's Daily Mail, for a century strange pattern symbols on a clay writing tablet have baffled scientists. Recently, two scientists revealed the mystery, as it turns out this clay writing tablet recorded the event of 5000 years ago when two Palestinian cities, Sodom and Gomorrah, were destroyed by meteorites. According to records in the Old Testament, these two cities were destroyed by a great fire due to their inhabitants' sins.