On October 5, 1913, Mayakovsky attended an evening event where Chukovsky gave a lecture about the futurists, followed by poetry readings by Kruchyonykh and Severyanin. The event took place in the hall of the Tenishev School. Both buildings belonged to Princess Tenisheva, known for her patronage. In 1903-1904, as a result of a complete redesign, an amphitheater hall with a stage and two foyers was built inside house No. 35, with a separate entrance from the street. Very soon, this hall, like Solyany Gorodok, became widely known in Petersburg. Newspaper announcements and posted posters frequently informed about various evenings and concerts, public lectures, and debates held in the hall of the Tenishev School.

On December 5, the newspaper "Den" (published by right-wing Mensheviks) informed the public about a lecture that Chukovsky would give there. The next day, the same newspaper reported the presence at the evening of "a certain poet in a yellow jacket." This poet was Mayakovsky, and this note is the first mention of his famous yellow jacket, which he wore in the summer of 1913 and which caused so much noise and speculation.

Later, Mayakovsky himself explained its appearance: "I never had suits. I had two blouses of the most hideous kind. The tried-and-true way to decorate oneself was with a tie. No money. I took a piece of yellow ribbon from my sister. Tied it around me. A sensation. So, the most beautiful and noticeable thing on a person is the tie. And since the size of ties is limited, I went for a trick: I made a tie-shirt and a shirt-tie. The impression was irresistible."

"I will sew myself black pants
from the velvet of my voice.
A yellow jacket from three arshins of sunset.
Along Nevsky Prospekt of the world, along its polished stripes,
I will prowl with the step of Don Juan and a veil," writes Mayakovsky.

The appearance of the futurists invited to give a lecture at the Petersburg Tenishev School (October 5, 1913), according to contemporaries, was as follows: "Their costumes were unimaginably wild: one poet strutted in a yellow jacket. Others wore bright green ties, inserted yellow flowers into their buttonholes, and forgot to comb their hair at home."

On April 14 (27), 1917, in the hall of the Tenishev School, the Society "Art for All" held an "evening of free poetry." Artists and poets truly "for all tastes" were invited to participate. As reported by the "Petrograd Newspaper," the actress Musina read two poems by Béranger and "Titans" by Merezhkovsky; S. Yesenin recited his "Marfa Posadnitsa"; Chukovsky performed with revolutionary poems by Whitman and banned works by Shevchenko; and after him, poems by F. Sologub were read by the author himself. Then the audience was announced that V. Mayakovsky would perform in addition to the program. And this announcement, the "Petrograd Newspaper" reports, caused almost a panic, "because this Bolshevik in poetry is always dangerous," it explains. The poet read excerpts from the poems "A Cloud in Trousers" and "War and Peace."

Two weeks later, on May 3, in the same hall of the Tenishev School, an evening titled "Revolution.–War.–Futurism.–Mayakovsky" took place. It was organized and promoted by the poet’s friends from futurism.

"Zhurnal Zhurnalov" (Nos. 20-21) amused readers by publishing two caricatures by artist Teddy of two popular poets. Under the drawings were inscriptions: "Severyanin – Menshevik of Futurism" and "Mayakovsky – Bolshevik of Futurism." Mayakovsky did not protest.

On October 12, 1918, a group of organizers of the production "Mystery-Buff" published the following appeal in Petrograd newspapers:

"Comrade actors! You are obliged to mark the great holiday of the revolution with a revolutionary play. You must stage 'Mystery-Buff,' a heroic, epic, and satirical depiction of our era, created by Vladimir Mayakovsky. Come all on Sunday, October 13, to the concert hall of the Tenishev School. The author will read 'Mystery,' the director will present the staging plan, the artist will show sketches, and those of you who are inspired by this work will become performers. The Central Bureau for the Arrangement of October Celebrations provides all necessary funds for the realization of 'Mystery.' Everyone to work! Time is precious! Only comrades wishing to participate in the production are asked to come. The number of places is limited."

As expected, many responded to this call. But those who came to the Tenishev School were mostly not actors but the general public; the opportunity to see and hear Mayakovsky attracted them.

As promised, the author read the play, and Meyerhold and Malevich spoke about its staging and design. Then registration took place for those wishing to participate in the play. Among the registrants, students from the Conservatory, University, and Academy of Arts predominated. But they were clearly insufficient. There were a few unemployed actors, and some responded to invitations sent to Petrograd theaters. But most participants were amateurs, not professionals.

Sources:

http://majakovsky.ru/mesta/mokhovaya-ul-33-35/

Weis Z.A. With Mayakovsky through Saint Petersburg / Z. A. Weis, V. Ya. Grechnev. - Saint Petersburg