rstl.royalsocietypublishing.org

"In 1662, the newly formed 'Royal Society of London for Improving Natural Knowledge' was granted a charter to publish by King Charles II and on 6 March 1665, the first issue of Philosophical Transactions was published under the visionary editorship of Henry Oldenburg, who was also the Secretary of the Society. The first volumes of what was the world's first scientific journal were very different from today's journal, but in essence it served the same function; namely to inform the Fellows of the Society and other interested readers of the latest scientific discoveries. As such, Philosophical Transactions established the important principles of scientific priority and peer review, which have become the central foundations of scientific journals ever since. In 1886, the breadth and scope of scientific discovery had increased to such an extent that it became necessary to divide the journal into two, Philosophical Transactions A and B, covering the physical sciences and the life sciences respectively."

"Most of our oldest content is now freely available, specifically, all papers older than 70 years. In addition, papers published between 10 years ago and either 12 months ago (biological sciences) or 24 months ago (physical sciences) are freely available. For Biographical Memoirs all issues are now freely available, apart from the most recent issue" (https://royalsociety.org/journals/free-content/, accessed 02-2017).

[When I created this entry I was unable to determine when this digitization project originated; therefore I arbitarily assigned the year 2000. If anyone could supply the project origination date that would be much appreciated.]