Added more of Cheshire's boundaries, historical Mersey; Manchester Ship Canal

Added more of Cheshire's boundaries, historical Mersey

Added more of Cheshire's boundaries, historical Tame

Added more of Cheshire's boundaries

Fixed minor error in England and Wales boundary

Added small section of Cheshire's boundary

Amended historical Scotland-England boundary (mostly) along the Tweed; Added way for the (modern) Tweed; Added Coldstream Police Burgh; Extended modern Scotland out to 3nm; removed admin_level from various ways

Added County of the Borough of Berwick upon Tweed and Eyemouth Police Burgh

Shropshire boundary changes

Added incomplete/open Cheshire relations

Added most of the rest of the southern boundary of Cheshire

Added Wat's Dyke; Added an iteration of Shropshire; Added part of the Staffordshire-Cheshire boundary; Tagging

Cleaned up Gwynedd re. Tegeingl and converted it to 3nm ways; cleaned up Avon estuary boundary (19/20c)

Cleaned up a placeholder boundary and added a few other partial boundaries

tweaks to Welsh counties

Removed "First" and "Second" from the Bulgarian Empire labels (retained as alt_name) and added a few other tags

tagging

pre-1889 Flintshire-Denbighshire boundary

Mercia

Tagging