<prompt> Translate the following text to EnglishIngawa trulli za kale zaidi za eneo hilo zilitoka karne ya 16, baadhi ya watu wanaamini kwamba mbinu hiyo ya ujenzi ilitoka kabla ya historia, labda ililetwa hapa kutoka Ugiriki au Mashariki ya Kati.  <response>: Though the regions oldest surviving trulli date back only to the 16th century, the construction technique is believed by some to be prehistoric, brought here perhaps from Greece or the Middle East. 