Author's note: Today's historical retrospective was meant for publication on Feb. 24. Any mix-up is solely the fault of the author. For a look back at events that took place on February 25, please click here.

On this day in economic and financial history...

Did you know that half of JPMorgan Chase (JPM 2.51%) began its life as a manufacturing concern? The Chase half of JPMorgan was originally known as the New York Chemical Manufacturing Company, which was established on Feb. 24, 1823. This company was ostensibly created to produce dyes, paints, drugs, and other chemicals, but from its earliest days it was clear that the company's founders had intended to gain a banking charter. Within a year, they secured that charter from the state of New York, and the Chemical Bank was born as a division of a manufacturing company.

Chemical Bank was one of only 13 banks in New York City at the time, with several others operating under similar business structures. Conservative management saw the bank successfully through the devastating Panic of 1837 and the depression that followed. When New York State changed its banking rules in 1938 to promote independent banks that held government bonds rather than asset-backed merchant banks, Chemical's management saw its opportunity to strike out without a manufacturing arm. Chemical liquidated its manufacturing operations when its original banking charter expired in 1844 and reincorporated solely as a bank. From then on it would slowly grow into one of the largest banks in the world.

Chemical's conservatism guided it through the many booms and busts of the 19th century, and it became a nationally chartered bank at the end of the Civil War. By then it had already earned the nickname "Old Bullion" for its rare consistency in redeeming banknotes in gold and silver when its peers suspended this practice during times of crisis.

The early 20th century was a time of transformation as Chemical finally began opening branches. The Great Depression didn't harm the bank, as its long-standing reputation drew in depositors that felt secure in its care even as thousands of other banks failed. A series of mergers and acquisitions after the Second World War greatly expanded Chemical's size and reach until it ultimately acquired Chase Manhattan in 1996, creating what was then the largest financial institution in the country. After acquiring J. P. Morgan in 2000, the bank became the now-familiar JPMorgan Chase, earning that bank's component status on the Dow Jones Industrial Average (^DJI 0.56%) -- held since 1991 -- in the process. Although none of the Chemical branding remains, the bank now run by Jamie Dimon is more closely aligned in spirit to that bank than it is to either Chase Manhattan or to J. P. Morgan.

With big finance firms still trading at deep discounts to their historic norms, investors everywhere are wondering whether this is the new normal or finance stocks are a screaming buy today. The answer depends on the company, so to help you figure out whether JPMorgan is a buy today, I invite you to read our premium research report on the company today. Click here now for instant access!

This pound feels a bit lighter
On Feb. 24, 1985, the British pound fell to a record low of just $1.05 against the U.S. dollar. It was the lowest the pound had ever been in modern history, but the sharp decline that had begun at the tail end of 1980 was soon over. Americans who enjoyed cheap real estate, cheap goods, and a generally cheaper life in the British Isles soon felt their purchasing power lighten as the Bank of England's double-digit interest rates finally began to work. Within three years, the pound returned to its traditional value of between $1.60 and $1.80 against the dollar, which is where it has largely remained (with a few jumps toward a $2 exchange rate) ever since.

Healthy gums and healthy profits
The first commercial use of nylon occurred on Feb. 24, 1938, when Doctor West's Miracle-Tuft toothbrushes went on sale. This was a pretty big deal at the time -- before these toothbrushes were developed, people were forced to use hog-bristle brushes for their pearly (piggy?) whites. The toothbrushes, advertised as the hygienic choice during World War II, helped ensure the popularity of both plastic-derived toothbrushes and nylon itself, which had been developed only three years earlier by a DuPont (DD) researcher.

Today, roughly 4.2 billion people in the world own a toothbrush, which may be the standard stick-and-bristles style that was common from the beginning or one of a wide variety of electric brushes. Nearly all are made from synthetic fibers, but this is only one of many possible uses for nylon, which is now one of the world's most common artificial fibers.