:Category:Introductions by year
{{Category see also|Introductions by decade|Introductions by century}}
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{{Commons category}}
{{Category see also|Establishments by year}}
{{Category TOC custom|1400|1420|1440|1460|1480|1500|1520|1540|1560|1580|
|1600|1620|1640|1660|1680|1700|1720|1740|1760|1780
|1800|1820|1840|1860|1880|1900|1920|1940|1960|1980|
|2000|2020}}