Semi-colon

Use a semicolon:

• To join two independent clauses on the same topic.
• He’d said what he wanted to say; he left.
• To join two sentences using an adverbial conjunction. These can also be written as two sentences.
• My writing has improved; however, it still has a long way to go.
• To separate items in a list which are already using commas.
• The disease has now spread to Guangxi, China; Tainan, Taiwan; Dushanbe, Tajikistan; and, Ahmedabad, India.