Today's Google Doodle features an illustration of American writer and urban planning activist Jane Jacobs, who successfully campaigned against major infrastructure projects in New York and Toronto.
To commemorate what would have been Jacobs' 100th birthday, Google has created a customised logo in its that depicts the author among colourful buildings that vaguely spell out the search engine's name.

Displayed to users in the US on the search engine's homepage, the illustration is drawn to look like New York's Greenwich Village and includes landmarks like the Washington Square Arch.
Jacobs, who died in 2006 aged 89, lived in the Manhattan neighbourhood and famously campaigned against city planner Robert Moses' proposals for the area.

Related story: Google animates St Paul's Cathedral to celebrate Christopher Wren's birthday
She was involved in the cancellation of the Lower Manhattan Expressway, which would have also involved the demolition of parts of SoHo and Little Italy, and was arrested in 1968 for inciting a crowd at a public hearing about the project.
Born Jane Butzner in 1916, Jacobs had no formal training in urban planning but became a prominent writer and critic in the male-dominated field.

She started out as a reporter for Amerika magazine, then worked at Architectural Forum before writing her influential 1961 book The Death and Life of Great American Cities, which argued that urban renewal did not respect the needs of most city dwellers.
After moving t...