Question: Excursions, Op. 20, is the first published solo piano piece by a composer born in what year?

Context paragraphs:
Ballade No. 1 (Liszt): Ballade No. 1 in D-flat major, S.170, is a solo piano piece by the Hungarian composer Franz Liszt, composed between 1845 and 1848.  In the original edition it contained the title ""Le Chant Du Croisé"" or ""The Chant of the Crusader"".  A typical performance of the piece lasts about 7 to 8 minutes.

Premier Menuet: The Premier Menuet ("First Minuet") is a Neoclassical piano piece by Erik Satie.  Written in June 1920, it was his last composition for solo piano.  It was published by Les Éditions de La Sirène in 1921.

Frühlingsrauschen: Frühlingsrauschen, Op. 32, No. 3 (Rustle of Spring) is a solo piano piece written by the Norwegian composer Christian Sinding (1856–1941) in 1896.  It is Sinding's most popular piece of music.  It is written in Salon style as a piece meant for entertainment.  It was very popular in the United States.

Piano piece: A piano piece or piece for piano (German: "Klavierstück" , ] ; French: "morceau [or] pièce pour (le) piano" , ] ) is a piece of music for piano.  It is a generic name for any composition for the instrument, but when capitalised (Piano Piece, Piece for Piano) the name is used to indicate a (usually) single-movement composition for solo piano that has not been given a more specific name (such as Sonatina, "Allegro de concert" or "Le Bananier"), for example:

Fantasia contrappuntistica: Fantasia contrappuntistica is a solo piano piece composed by Ferruccio Busoni in 1910.  Busoni created a number of versions of the work, including several for solo piano and one for two pianos.  It has been arranged for organ and for orchestra since the composer's death.

Nocturne in C-sharp minor, Op. posth. (Chopin): The Nocturne No. 20 in C-sharp minor, Op.  posth., "Lento con gran espressione", P 1, No. 16, KKIVa/16, is a solo piano piece composed by Frédéric Chopin in 1830 and published in 1870.

Piano Sonata No. 5 (Prokofiev): Sergei Prokofiev's Piano Sonata no. 5 in C major, Op. 38 (1923) and Op. 135 (revised 1952-53) is a sonata for solo piano.  Prokofiev composed the sonata in Ettal, by the Bavarian Alps, and dedicated it to Pierre Souvtchinski, a musicologist and friend.  Even though the revised version of the sonata has a new opus number, if one compares the two versions closely, there are few radical differences between the two, with most of the changes occurring in the last movement.  This sonata was the only piano piece of this genre to be composed during his life outside of Russia.

Samuel Barber: Samuel Osborne Barber II (March 9, 1910 – January 23, 1981) was an American composer of orchestral, opera, choral, and piano music.  He is one of the most celebrated composers of the 20th century: music critic Donal Henahan stated that "Probably no other American composer has ever enjoyed such early, such persistent and such long-lasting acclaim."

Excursions (Barber): Excursions, Op. 20, is the first published solo piano piece by Samuel Barber.  Barber himself explains:

Concerto for Solo Piano (Alkan): Concerto for Solo Piano (French: "Concerto pour piano seul" ) is a 3-movement solo piano piece written by Charles-Valentin Alkan.  The pieces are part of a 12 piece cycle entitled "Douze études dans tous les tons mineurs" (12 Studies in the Minor Keys), published in 1857 (although it may have been written some years earlier).  With sections marked "Tutti", "Solo" and "Piano", the piece requires the soloist to present the voices of both the orchestra and the soloist.  The pianist Jack Gibbons comments: "The style and form of the music take on a monumental quality—rich, thickly set textures and harmonies ... conjure up the sound world of a whole orchestra and tax the performer, both physically and mentally, to the limit."

Supporting paragraphs: Excursions (Barber) Samuel Barber
Answer: 1910