Read the passage below:
In November 1958, sound archivist Arthur Pendelton published his definitive catalog of early acoustic wax cylinder recordings. However, the path to this milestone was far from direct. Pendelton had first encountered the deteriorating cylinders in 1949 when a flood damaged the Royal Conservatory's basement, prompting him to transfer the collection into climate-controlled storage. Although he secured an initial preservation grant from the Heritage Foundation in 1951, technical hurdles delayed progress. Following two years of failed attempts to build a mechanical playback stylus, Pendelton successfully digitized the rarest cylinders in 1953 using a modified optical pick-up. Shortly after releasing his published catalog in 1958, Pendelton donated the restored digital archive to the National Library.
Based on the passage, arrange the following events in chronological order from earliest (first) to latest (last).
- 1Pendelton transfers the deteriorating wax cylinders into climate-controlled storage.
- 2Pendelton secures an initial preservation grant from the Heritage Foundation.
- 3Pendelton successfully digitizes the rarest wax cylinder recordings.
- 4Pendelton donates the restored digital archive to the National Library.