Trade Gallery

Map of the City of Dublin, 1797

Map of the City of Dublin, Ireland. Published in 1797, this map includes details of the canals being built at the time. Canal Harbour (lower right) connects across bottom with the Grand Canal (lower left). The Royal Canal (upper right and a branch at upper centre) was a competing canal. Running across centre is the River Liffey. Borders of the city's wards are marked in coloured lines, with a key at lower right, next to the city coat of arms. The scale at lower left is in both English and Irish miles. In 1797, Ireland was ruled by Britain, and this map was published by the geographer to King George III and the Prince of Wales (the future King George IV)

© LIBRARY OF CONGRESS, GEOGRAPHY AND MAP DIVISION/SCIENCE PHOTO LIBRARY

Aerial view of the Twin Towers of the World Trade Center Construction

Aerial view of the Twin Towers of the World Trade Center during its construction in lower Manhattan, New York City, 1971. (Photo by Carsten/Three Lions/Hulton Archive/Getty Images)
The iconic twin towers of downtown Manhattan's World Trade Center were completed in 1973. They stood at 110 stories each, accommodating 50, 000 workers and 200, 000 daily visitors in 10 million square feet of space. They were the hub of the bustling Financial District, a top tourist attraction and a symbol of New York City's-and America's-steadfast devotion to progress and the future

Map of the extent of the Hanseatic League in about 1400

Map of the extent of the Hanseatic League in about 1400. The Hanseatic League was an alliance of about 100 north German towns and trading interests important in northern Europe from the 13th century. At the peak of its influence in the late 14th century the League enjoyed a virtual monopoly of trade in Scandinavia and the Baltic, but its power declined from the 15th century and its last Diet (assembly) met in 1669

© Ann Ronan Picture Library / Heritage-Images