A former municipality in Finland, established in 1932 from parts of Akaa , Lempäälä , and Vesilahti . Viiala was merged on 1 January 2007 with Toijala , the new town being named as Akaa .Between 1932 and 1997 Viiala was part of the Province of Häme ( Hämeen lääni in Finnish, Tavastehus län in Swedish), and between 1997 and 2007 part of the Province of Western Finland ( Länsi-Suomen lääni in Fin...