Newspapers are always dated. Just dig through the stack until you find the one with the earliest date.
The New Hampshire Gazette, founded in 1756 by Daniel Fowle, is the nation's oldest newspaper (that is still being published). They have a trademark on the 'nation's oldest newspaper' title.
No, newspaper is a common, singular noun. Examples of collective nouns for newspaper are pile or stack of newspapers.
1054
roll up the newspaper sheets into cones then stack them on top of each other.
The Oldest newspaper still in circulation is the Chilean "El Mercurio de Valparaíso" founded on 1827
The Jesus Times.
The Otago Daily Times may be the oldest continuously published newspaper in New Zealand, first started in 1861.
the dartmouth 1799
'An account of Chief occurrences in Ireland'.. published in 1660
the times of India
Acta Duirna
The Jesus Times