It was the dawn of 1863, and London’s 
not-yet-opened subway system, the first of its kind in the world, 
had the city in an uproar. Digging a hole under the city 
and putting a railroad in it seemed the stuff of dreams. Pub drinkers scoffed at the idea and a local minister accused the railway
company of trying to break into hell. Most people simply thought the project, which cost more than
100 million dollars in today’s money, would never work. But it did. On January 10, 1863, 30,000 people ventured underground 
to travel on the world’s first subway on a four-mile stretch of line in London. After three years of construction
and a few setbacks, the Metropolitan Railway 
was ready for business. The city’s officials were much relieved. They’d been desperate to find a way to reduce the terrible 
congestion on the roads. London, at the time the world’s largest 
and most prosperous city, was in a permanent state of gridlock, with carts, costermongers, cows, and commuters jamming the roads. It’d been a Victorian visionary, 
Charles Pearson, who first thought of putting railways 
under the ground. He’d lobbied for underground trains 
throughout the 1840s, but opponents thought the idea
was impractical since the railroads at the time 
only had short tunnels under hills. How could you get a railway 
through the center of a city? The answer was a simple system 
called "cut and cover." Workers had to dig a huge trench, construct a tunnel out of brick archways, and then refill the hole 
over the newly built tunnel. Because this was disruptive and required the demolition 
of buildings above the tunnels, most of the line went
under existing roads. Of course, there were accidents. On one occasion, a heavy rainstorm 
flooded the nearby sewers and burst through the excavation, delaying the project by several months. But as soon as 
the Metropolitan Railway opened, Londoners rushed in 
to ride the new trains. The Metropolitan quickly became 
a vital part of London’s transport system. Additional lines were soon built, and new suburbs grew around the stations. Big department stores opened 
next to the railroad, and the railway company 
even created attractions, like a 30-story Ferris wheel in Earls
Court to bring in tourists by train. Within 30 years, London’s subway system covered 
80 kilometers, with lines in the center of town
running in tunnels, and suburban trains operating 
on the surface, often on embankments. But London was still growing, and everyone wanted 
to be connected to the system. By the late 1880s, the city had become too dense with
buildings, sewers, and electric cables for the "cut and cover" technique, so a new system had to be devised. Using a machine 
called the Greathead Shield, a team of just 12 workers could 
bore through the earth, carving deep underground tunnels 
through the London clay. These new lines, called tubes,
were at varying depths, but usually about 25 meters deeper than 
the "cut and cover" lines. This meant their construction 
didn’t disturb the surface, and it was possible 
to dig under buildings. The first tube line, 
the City and South London, opened in 1890 and proved so successful that half a dozen more lines 
were built in the next 20 years. This clever new technology was even used 
to burrow several lines under London’s river, the Thames. By the early 20th century, Budapest, Berlin, Paris, and New York had all built subways of their own. And today, with more than 160 cities 
in 55 countries using underground rails 
to combat congestion, we can thank Charles Pearson
and the Metropolitan Railway for getting us started on the right track.