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SnapFacts1
📌Detail Faktanya: Sistem komunikasi menggunakan api dari menara ke menara ini pernah digunakan di beberapa peradaban kuno, salah satunya oleh Great Wall beacon tower system di wilayah China. Sistem tersebut sudah digunakan sejak era dinasti kuno dan terus berkembang hingga sekitar Dinasti Ming pada abad ke-14 sampai ke-17. Menara pengawas ditempatkan berjauhan di sepanjang jalur pertahanan, lalu para penjaga akan menyalakan api atau asap untuk mengirim sinyal bahaya ke menara berikutnya. Dalam...
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