Bold Endeavours

The five moments in this challenge

The scenes are shown below — tap a card to reveal its place and year.

1. 

   Round 1 · 537

   Construction of the Hagia Sophia

   Constantinople, Byzantine Empire

   Emperor Justinian I spared no expense to build the largest cathedral in the world, completing its massive central dome and soaring interior spaces in just under six years.

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2. 

   Round 2 · 1957

   Sputnik 1 Launch at Baikonur Cosmodrome

   Baikonur, Kazakhstan

   The Soviet Union shocked the world and triggered the Space Race by launching the first artificial Earth satellite from a highly classified military test range in the remote Kazakh steppe.

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3. 

   Round 3 · 1795

   King Kamehameha's Victory at Nu'uanu Pali

   Oʻahu, Hawaii

   King Kamehameha I united the Hawaiian Islands after a fierce battle that forced Oʻahu's defenders off the edge of a dramatic volcanic cliff, securing his legendary rule.

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4. 

   Round 4 · 1480

   Carving the Stećci Tombstones at Radimlja

   Stolac, Bosnia and Herzegovina

   Across the Dinaric Alps, followers of the Bosnian Church and local nobles marked their graves with monumental limestone tombstones adorned with intricate spirals, arcades, and mysterious celestial motifs.

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5. 

   Round 5 · 1276

   Construction of the Kamyanets Tower

   Kamyanyets, Belarus

   Erected by the Prince of Volhynia to guard his northern borders against marauders, this towering red brick keep is one of the few surviving medieval defensive structures of its kind.

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