Wikipedia:Selected anniversaries/April 25
Appearance
![DNA replicating](http://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Dna-split.png/80px-Dna-split.png)
On April 25:
- 1719 - Robinson Crusoe by Daniel Defoe was first published.
- 1898 - Spanish-American War: The U.S. Congress retroactively declared war on Spain.
- 1916 - ANZAC Day was commemorated in Australia and New Zealand for the first time.
- 1953 - A paper describing the structure of DNA was published.
- 1961 - Robert Noyce was granted the first patent for an integrated circuit.