Real property owned by a corporation or association
which is organized exclusively for bible, tract, benevolent, missionary,
infirmary, public playground, scientific, literary, bar association,
medical society, patriotic or historical purpose, either by the owning
corporation or association, shall be taxable pursuant to the provisions
of § 420-b of the Real Property Tax Law.
This article shall take effect on the taxable
status date next succeeding the date of its adoption.