For instructions on this template, you can view helpful technical details in the documentation for the original Template:Navbox, at Template:Navbox/doc.
For abbreviating names of countries, please use the two-letter codes assigned under ISO 3166-1 alpha-2.
this can be viewed at ISO_3166-1_alpha-2#Officially_assigned_code_elements.
This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the |state= parameter may be used:
{{2020s in history|state=collapsed}}will show the template collapsed, i.e. hidden apart from its title bar.{{2020s in history|state=expanded}}will show the template expanded, i.e. fully visible.
- NOTE: this navbox was creating by using the basic template located at template:navbox.