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Map: Here’s what San Francisco looked like in 1856
"In 1848, when news of gold in the California River first touched off a frenzy in America, San Francisco was home to only about 1,000 people.

Within two years the city swelled to some 25,000, a “speedy transition from a city of tents and shacks to one of brick and stone buildings, architecturally on a par with those of Atlantic seaboard cities,” as the history site SF Museum puts it.

But what did the rough and tumble “Instant City” look like in those day? It can be hard to imagine, since so much of 19th century San Francisco was lost to the 1906 earthquake.

A series of photos from 1856—the year San Francisco County formed and first distinguished itself from San Mateo County, by which time SF was populated at roughly 30,000—shows a resolute and established metro by the bay, one that looks as if it had spent decades percolating.

These scenes, photographed by G.R. Fardon, appear in a number of collections, but in this case have been licensed to Curbed SF by Southern Methodist Univeristy’s DeGolyer Library in Dallas, Texas, here applied to a modern map to create a tactile sense of San Francisco as it existed at the height of gold fever.

(Note that locations are approximate and modern street addresses are used to get map locales on the same block as historical sites rather than to pinpoint them precisely.)"
photography  1856  sanfrancisco  maps  mapping  grfardon 
20 hours ago by robertogreco
World City Populations Interactive Map 1950-2035
"The Global Urban Transformation

This map visualises the radical transformation that has occurred across the globe in the last 60 years, from a 30% urban world in 1950, to a 54% urban world in 2015 and a predicted 68% urban world in 2050. In 1950 there were 740m people living in cities; there are now 4 billion, rising to a predicted 6.6b by 2050. The circles on the map are proportional to city populations in 1950, 1990, 2015 and 2035. Move your mouse over cities to explore their detailed dynamics. Data is from the UN World Urban Propospects 2018.

Industrialisation and urban growth in the 19th and early 20th centuries were powered by Western Europe and the North-Eastern USA, but the urban population of these regions has been relatively static since 1950. Recent growth is instead the result of rapid urbanisation in China, India, Latin America and increasingly Africa. Over half of the world's urban population is now is Asia, with China alone comprising 20% of the global total. Asia and Africa will together account for 90% of the additional 2.3b urban dwellers predicted between 2015 and 2050.

The pace of recent change at the city level is unprecedented in human history. Shanghai (click on the city link to focus the map) gained 16 million people between 1990 and 2015, Beijing 13.6 million, Dhaka 11 million. Delhi gained 16 million residents between 1990-2015 and is now the world’s second largest city of 26m. Delhi is predicted to overtake Tokyo to become the world's largest city by 2030, with a predicted 43m residents by 2035.

Small towns like Shenzhen, Xiamen and Dubai have become cities of several million in little over two decades. While the proportion of urban residents living in large cities is increasing, it is important to realise that 50% of the global urban population live in settlements of less than 0.5m. The minimum population threshold for cities included in this map is 0.4m.

Our increasingly urban world now frames many of society’s greatest challenges. From global equality to health, education, prosperity and, not least, sustainability, solutions need to be interwoven with fostering liveable, efficient and inclusive cities.

Waves of Growth
We can see distinct waves of urban growth and stagnation over time. In the 1960s and 1970s, economic growth in Japan, Mexico, Brazil and later South Korea produced rapid urban growth. This growth peaked in 1990 in Japan, in 2000 in South Korea, and city populations are now peaking in Latin America. This is the typical urbanisation cycle of population stabilisation following development.

China and India’s rapid growth has been much more recent, accelerating in the 1990s and 2000s. China’s growth is predicted to slow over the next two decades, with its total population peaking around 2025, although it's rate of urbanisation will continue to rise towards 70% in 2030. India’s population growth will continue much longer to around 2060. There remains a huge rural Indian population of 800 million people, a significant proportion of which will urbanise in coming decades.

Meanwhile many sub-Saharan African countries are just beginning their rapid urban expansion. Lagos is set to gain 12 million residents between 2015 and 2035, Kinshasa 15 million, Dar es Salaam 8 million, Luanda 7.5 million. Urbanisation in Africa will ideally bring the scale of poverty reduction achieved in countries like China, though clearly there are many challenges and huge diversity across the region."
maps  mapping  population  cities  comparison  1990  1950  2015  2035  urban  urbanization 
21 hours ago by robertogreco
library for visualizing a globe
javascript  opensource  mapping  visualization 
yesterday by jshwlkr
Large-scale WebGL-powered Geospatial Data Visualization Tool is a data agnostic, WebGL empowered, high-performance web application for geospatial analytic visualizations.
geo  gis  geodata  visualisation  maps  mapping  javascript  opensource 
2 days ago by garrettc
Explore the Era (Map) » Pacific Standard Time at the Getty
"Delve into the postwar Los Angeles art world in this online archive, which provides additional material related to the exhibitions on view at the Getty Center. Learn about hipsters and happenings, and the venues across the city where all the action took place through images from the archives and first-hand accounts with the artists."
socal  california  art  losangeles  artschools  pacificstandardtime  maps  mapping  midcentury  1950s  1960s  1970s 
2 days ago by robertogreco

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