The only Empire to meet both criteria was the British Empire. Others have had accurate calendars; even the Egyptians had that. But astronomy more advanced than "Look at the patterns of the pretty lights in the sky" was never attained until the invention of the telescope in 1608.
Note: The Maya Empire, in Central America, developed very accurate calendars, but
I wouldn't say that their general astronomy was advanced.
That may be the answer required.
BY watching the sky, the priests learned about Astronomy and developed a 365-day calendar
The Mayas built Tikal and had an advanced knowledge of astronomy, giving them the ability to make a calendar.
an extremely accurate calendar.
very accurate :P
A two calendar system
The Egyptians developed the first accurate calendar.
BY watching the sky, the priests learned about Astronomy and developed a 365-day calendar
The Mayas built Tikal and had an advanced knowledge of astronomy, giving them the ability to make a calendar.
The invention that the Babylonians were known for was the accurate calendar, astronomy, and mathematics.
The Maya developed a mathematical system based on the number 20 and they were the first people to use zero. By using their math system, the Maya made great advances in astronomy. The Maya also produced a very accurate calendar system.
The Mayan calendar was closely linked to astronomy as Mayans used celestial observations to track time and create their calendar systems. They developed calendars based on the movements of the Moon, Sun, and planets, which allowed them to predict astronomical events and seasons for religious and agricultural purposes. The Mayans' advanced understanding of astronomy helped them create calendars with remarkable accuracy and complexity.
organized religion a written language an accurate calendar advanced agriculture
The Maya calendar was developed by the ancient Maya civilization in Mesoamerica. It was likely influenced by earlier Mesoamerican cultures and their understanding of astronomy. The Maya's advanced knowledge of mathematics and astronomy allowed them to create a complex calendar system that accurately tracked time and celestial events.
The Maya civilization created an accurate calendar between A.D. 300 and A.D. 900. The Maya calendar was highly advanced and consisted of several interlocking calendars that helped them track time accurately and predict astronomical events. It was based on their extensive knowledge of mathematics, astronomy, and astrology.
It depends on the civilisation. Some civilisations had a calendar just to suit their own cultures, while some more advanced civilisations actually created accurate calendars based on astronomy, just like the ones we use today.
An amazingly accurate calendar--the modern world didn't surpass it in accuracy until the 1960s. Architecture and astronomy--
I'm going to have to go with "Astronomy".