The present Doodle honors Pakistan’s Independence Day in festivity of the date in 1947 when it turned into a self-sufficient republic.

Delineated in the Doodle work of art is the invigorated eastern passage of Pakistan’s memorable Khojak Tunnel, one of the country’s most established and longest underpasses. Development on this notable milestone started in 1888 to expand the territory’s railroad through the Khojak go of the Toba Kakar mountain run, which was at the time difficult to cross via train.

The Khojak Tunnel’s development was an uncommon endeavor in the South Asian subcontinent. More than 19 million blocks were required, the majority of which were kilned at the rough site, and manufacturers consumed in excess of 6,000 candles to light up their work in obscurity space. Upon its finish in 1891, the 3.9-kilometer Khojak Tunnel turned into the fourth-longest underpass on the planet.

To respect this accomplishment of structural designing, in 1976 the Pakistani government printed a portrayal of the Khojak Tunnel on its five-rupee note, which stayed available for use until 2005.

Glad Independence Day, Pakistan!