1 янв 300 г. до нашей эры - Roman Concrete (Rome)
Описание:
Roman Concrete was considered the best in the world. It was made by mixing lime and volcanic rock to form a mortar. Roman concrete can still be found in the modern world meaning it has lasted aroudn 2000 years.Добавлено на ленту времени:
Дата:
1 янв 300 г. до нашей эры
Сейчас
~ 2327 г назад