...School Board Election (Ъ). The principle laid down by Mr. Justice Story; is stated in these words : ' ' Every Statute which takes away or impairs vested rights acquired under existing laws or creates a new obligation or imposes a new duty or attaches a new disability in respect of transactions...

...approved in Sturgis vs. Carter (114 US, 519), in which the following rule was laid down : "Upon principle, every statute which takes away or impairs vested rights acquired under existing laws, or creates a new obligation, imposes a new duty, or attaches a new disability, in respect to transactions...

...subversive of all the objects of the provision, to adhere to the former definition. . . . Upon principle, every statute, which takes away or impairs vested rights acquired under existing law, or creates a new obligation, imposes a new duty, or attaches a new disability in respect to transactions...

...constitutional prohibition, the general assembly has no power to pass retroactive laws. Art. II, sec. 28. Every statute which takes away or impairs vested rights acquired under existing laws, or creates a new obligation, imposes a new duty, or attaches a new disability, in respect to transactions...

...effective date that precedes its enactment. Justice Story expanded the concept of retroactivity to include "every statute [ ] which takes away or impairs vested rights acquired under existing laws ... or attaches a new disability in respect to transactions or considerations already past."127 According...

...requirements;7 § 13.02 0 1 Keeney v. Department of Justice, 139 P.2d 814 (Mont. 2006) ("retroactive" means a statute which takes away or impairs vested rights, acquired under existing laws, or creates a new obligation, imposes a new duty, or attaches a new disability, in respect to transactions...

...States law, and in case of inconsistency the later in time prevails." Ibid, at sec. 115, cmt. a. 29 " '[E]very statute, which takes away or impairs vested rights acquired under existing laws, or creates a new obligation, imposes a new duty, or attaches a new disability, in respect to transactions...

...for Propagation of the Gospel y. Wheeler, supra, is sound, which is to the effect that upon principle every statute which takes away or impairs "vested rights" acquired under existing laws, imposes a new duty, or attaches a new disability, must be deemed retrospective. To hold otherwise would...