United States, 1999 AD., Philadelphia mint, ¼ Dollar, Pennsylvania State commemorative, KM 294.

United States, 50 State Quarters series, Pennsylvania commemorative, engravers: J. Flanagan (obverse) and John Mercanti (reverse), Philadelphia mint, 1999 AD.,
¼ Dollar / 25 Cents (24,3 mm / 5,60 g), copper-nickel clad copper, theor. mint weight 5,67 g., mintage 349.000.000 , coin alignment ↑↓ (180°), reeded edge,
Obv.: UNITED STATES OF AMERICA / LIBERTY - IN / GOD WE / TRUST / P / QUARTER DOLLAR , portrait of George Washington facing left, motto and mintmark to r.
Rev.: PENNSYLVANIA / 1787 / VIRTUE / LIBERTY / INDEPENDENCE / JM / 1999 / E PLURIBUS UNUM , the Commonwealth statue (an allegorical female figure) standing front, holding an eagle-tipped standard, the state outline of the map of Pennsylvania behind, a keystone to left which illustrates its nickname "The Keystone State", above the date of Pennsylvania´s admission into the Union "1787".
KM 294 .

The Commonwealth (statue) is a 14-foot-6-inch (4.42 m) gilded statue atop the dome of the Pennsylvania State Capitol in Harrisburg, Pennsylvania. It is nicknamed Miss Penn and the Spirit of the Commonwealth. It is also sometimes called Letitia, after the daughter of William Penn, the assumed inspiration for the statue.

Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States, and the Great Lakes Region. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to the east. Pennsylvania is the 33rd most extensive, the 6th most populous, and the 9th most densely populated of the 50 United States. The state's four most populous cities are Philadelphia, Pittsburgh, Allentown and Erie. The state capital is Harrisburg.

Before the Commonwealth was settled by Europeans, the area was home to the Delaware (also known as Lenni Lenape), Susquehannock, Iroquois, Eriez, Shawnee, and other American Indian Nations. Both the Dutch and the English claimed both sides of the Delaware River as part of their colonial lands in America. The Dutch were the first to take possession, which has impact on the history of Pennsylvania.
By June 3, 1631, the Dutch had started up the DelMarVa Peninsula by establishing the Zwaanendael Colony on the site of present day Lewes, Delaware. In 1638, Sweden heated up the issue by establishing the New Sweden Colony, centered on Fort Christina, on the site of present day Wilmington, Delaware. New Sweden claimed and, for the most part, controlled the lower Delaware River region (Parts of present Delaware, New Jersey and Pennsylvania) but settled few colonists there.
On March 12, 1664, King Charles II of England gave James, Duke of York a grant that included all of the lands included in the original Virginia Company of Plymouth Grant as well as other lands. This grant was – again – in conflict with the Dutch claim for New Netherland, which included parts of today’s Pennsylvania.

On June 24, 1664, The Duke of York sold the portion of his large grant that included present day New Jersey to John Berkeley and George Carteret for a proprietary colony. As of yet, the land was not in British possession, but the sale boxed in the portion of New Netherland on the West side of the Delaware River. The British conquest of New Netherland was commenced on August 29, 1664, when New Amsterdam was coerced to surrender, facing the cannons on British ships in New York Harbor. This conquest continued, and was completed in October of 1664, when the British captured Fort Casimir in what today is New Castle, Delaware.

The Peace of Breda between England, France and the Netherlands confirmed the British conquest on July 21, 1667, although there were temporary reversions.
On September 12, 1672, as part of the Third Anglo—Dutch War, the Dutch re-conquered New York Colony/New Amsterdam, the Dutch established three County Courts which went on to become original Counties in present day Delaware and Pennsylvania. The one that later transferred to Pennsylvania was Upland. This was partially reversed on February 9, 1674, when the Treaty of Westminster ended the Third Anglo-Dutch War, and reverted all political situations to the status quo ante bellum. The British retained the Dutch Counties with their Dutch names. By June 11, 1674, New York reasserted control over the outlying colonies, including Upland, but the names started to be changed to British names by November 11, 1674. Upland was partitioned on November 12, 1674, producing the general outline of the current border between Pennsylvania and Delaware.

On February 28, 1681, Charles II granted a land charter to William Penn to repay a debt of £16,000 (around £2,100,000 in 2008, adjusting for retail inflation) owed to William's father, Admiral Penn. This was one of the largest land grants to an individual in history. It was called Pennsylvania. William Penn, who wanted it called New Wales or Sylvania, was embarrassed at the change, fearing that people would think he had named it after himself, but King Charles would not rename the grant. Penn established a government with two innovations that were much copied in the New World: the county commission and freedom of religious conviction.

What had been Upland on what became the Pennsylvania side of the Pennsylvania-Delaware Border was renamed as Chester County when Pennsylvania instituted their colonial governments on March 4, 1681. The Quaker leader William Penn had signed a peace treaty with Tammany, leader of the Delaware tribe, beginning a long period of friendly relations between the Quakers and the Indians. Additional treaties between Quakers and other tribes followed. The treaty of William Penn was never violated.

Pennsylvania became the second state to ratify the U.S. Constitution on December 12, 1787, five days after Delaware became the first.