<prompt> Translate the following text to EnglishKuta hizo mbili zilizojengwa katika karne ya tano wakati wa utawala wa Maliki Theodosius, zina urefu wa kilomita 61.2 kutoka Bahari ya Marmara hadi Pembe ya Dhahabu.  <response>: The double walls, built in the fifth century, during the reign of the Emperor Theodosius, stretch 61.2 km 4 miles from the Sea of Marmara to the Golden Horn. 