Rarely do volcanologist get to watch the birth, growth, and death of a volcano. Paricutin provided such an opportunity. The eruption that created Paricutin began in 1943 and continued to 1952. Most of the explosive activity was during the first year of the eruption when the cone grew to 1,100 feet (336 m). The cone continued to grow for another 8 years but added only another 290 feet (88 m).
For works made for hire and anonymous and pseudonymous works, the dura-tion of copyright is 95 years from first publication or 120 years from creation, whichever is shorter (unless the authorâs identity is later revealed in Copyright Office records, in which case the term becomes the authorâs life plus 70 years).
The first federal copyright act, the Copyright Act of 1790 granted copyright for a term of fourteen years from the time of recording the title thereof, with a right of renewal for another fourteen years if the author survived to the end of the first term. The act covered not only books, but also maps and charts.