Archaeologists in Israel left red-faced after it transpired that a unique 'ancient' inscription was carved last summer

• An inscription bearing the name of a Persian king is "not authentic," the Israel Antiquities Authority said.
• In a demonstration, an expert in ancient inscriptions had etched the words into the shard last summer.
• The Antiquities Authority said they take "full responsibility for the unfortunate event."

Antiquities authorities in Israel backpedaled on Friday after they announced a supposedly ancient inscription of the name of a Persian king was "not authentic." 

It turned out an expert in ancient Aramaic inscriptions had etched the words into the shard last summer.