
Standard gauge
A standard-gauge railway is a railway with a track gauge of 1,435 mm (4 ft 8+ 1 ⁄2 in ). The stan…

Proto-Austronesian language
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Khumbu Icefall
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Bafia languages
The Bafia languages are a clade of Bantu languages coded Zone A.50 in Guthrie's classification. A…

Factory worker
A factory, manufacturing plant or production plant is an industrial facility, often a complex con…

Positive-definite kernel
In operator theory, a branch of mathematics, a positive-definite kernel is a generalization of a …

Damascus Arabic
Damascus Arabic (l-Lahġe x-Xiemije ), also called Damascus dialect or Damascene dialect is a Leva…

Arabic languages
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Saeculum obscurum
Saeculum obscurum (Ecclesiastical Latin: [ˈsɛː.ku.lu.m obsˈkuː.rum] , "the dark age/century"), al…