History

About the history we need to think about

How Could a Clock Reveal Longitude at Sea?

2026-09-282026-09-28

고리 달린 은색 케이스 안에 로마 숫자 문자판이 보이는 해리슨 H4의 앞면

John Harrison’s marine timekeepers carried reference time across the sea. Explore how time differences reveal longitude, and the experiments from H1 to H4.

How Did London’s Great Stink of 1858 Change Its Sewers?

2026-09-222026-09-22

The stench reaching Parliament gave momentum to an existing drainage project. Follow the intercepting sewers and pumping stations that redirected London’s waste—and the limits of… Read More »How Did London’s Great Stink of 1858 Change Its Sewers?

There Was a Smartphone 13 Years Before the iPhone

2026-07-282026-09-21

1994년 출시된 IBM 사이먼 실물 사진. 4.5인치 저항식 터치스크린과 키패드가 보인다.

It’s famous that the iPhone opened the smartphone era in 2007. But a commercial product combining phone calls, email, and touchscreen apps in one device… Read More »There Was a Smartphone 13 Years Before the iPhone

Was the Trojan Horse Real? What the Burnt Walls Schliemann Recovered Reveal

2026-07-232026-09-21

튀르키예 차나칼레 해안에 전시된 현대 목마 조형물, 영화 트로이 촬영 소품

The story of soldiers hidden inside a giant wooden horse who brought down Troy in a single night wasn’t actually completed by Homer, but by… Read More »Was the Trojan Horse Real? What the Burnt Walls Schliemann Recovered Reveal

The Clock That Struck the Bell by Itself: the Jagyeongnu — Joseon’s Automatic Water Clock Revived by Records

2026-06-292026-09-21

복원된 자격루 전체 모형, 여러 개의 물항아리와 시보 장치가 단 위에 놓인 모습

The Jagyeongnu, built by Joseon in 1434, was an automatic time-announcing water clock that sounded the bell, drum, and gong on its own every hour,… Read More »The Clock That Struck the Bell by Itself: the Jagyeongnu — Joseon’s Automatic Water Clock Revived by Records

Jikji: The Oldest Surviving Book Printed with Movable Metal Type, 78 Years Before Gutenberg

2026-06-222026-09-21

직지심체요절 하권. 1377년(고려 우왕 3년) 청주 흥덕사에서 금속활자로 찍은, 현존하는 세계에서 가장 오래된 금속활자 인쇄본이다.

Printed with movable metal type at Heungdeoksa temple in Cheongju, Goryeo, in 1377, the Jikji Simche Yojeol is the oldest surviving book in the world… Read More »Jikji: The Oldest Surviving Book Printed with Movable Metal Type, 78 Years Before Gutenberg