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Ten questions, one answer each. Mark them yourself — every option explains why.
a building for measuring stars' places and motions
a measuring station, not a mosque
an observatory, not a fortress
an observatory, not a school
a tool for sailing, prayer and time
an astrolabe, not a compass
not an hourglass
centuries before the telescope
Ulugh Beg built Samarkand's observatory
Timur was his grandfather, not the scholar
Babur ruled India, not Samarkand
Hulagu was a Mongol destroyer
the astronomers' reckoning tables
tables, not poetry
tables, not a dome
tables, not a weapon
he measured about a thousand stars precisely
a hundred is fewer than his table
ten thousand exceeds his table
a million is far more
it helped sailing, prayer direction and time
stars, not building
measuring, not weapons
astronomy, not history
at Maragha in northern Iran
in Iran, not Egypt
not in al-Andalus
in Iran, not India
many stars still carry Arabic names
Arabic too, not only Roman
many Arabic, not Chinese
many Arabic names survive
Nasir al-Din al-Tusi of Maragha
al-Khwarizmi was in Baghdad
Ibn Sina was a physician, not Maragha's man
al-Farabi was a philosopher, not Maragha's
worship, trade and travel needs drove the science
worship and travel, not wars
a practical science, not decoration
a need, not amusement
60-second explainer · Glossary
