<prompt> Translate the following text to EnglishKwa miaka 300, hadi walipounganishwa kwa nguvu mwishoni mwa karne ya 18, walikuwa falme tofauti na watawala wa Malla waliohusiana, lakini sio mara zote marafiki.  <response>: For 300 years, until forcibly united in the late 18th century, they were separate kingdoms with related, but not always friendly, Malla rulers. 