The birth of Pilsner beer can be traced back to its namesake, the ancient city of Plzen (or Pilsen) which is situated in the western half of the Czech Republic in what was once Czechoslovakia and previously part of the of Bohemian Kingdom. Pilsner beer was first brewed back in the 1840's when the citizens, brewers and maltsters of Plzen formed a brewer's guild and called it the People's Brewery of Pilsen.
The Czech Pilsner, or sometimes known as the Bohemian Pilsner, is light straw to golden color and crystal clear. Hops are very prevalent usually with a spicy bitterness and or a spicy floral flavor and aroma, notably one of the defining characteristics of the Saaz hop. Smooth and crisp with a clean malty palate, many are grassy. Some of the originals will show some archaic yeast characteristics similar to very mild buttery or fusel (rose like alcohol) flavors and aromas. -- BeerAdvocate