Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The beginnings of the Soviet encyclopedia   In this paper we focus on the beginning of publication of the Large Soviet
Encyclopedia, launched in 1925. We present the context of this launching and
explain why it was tightly connected to the period of the New Economical
Policy. In a last section, we examine four articles included in the first
volumes of the encyclopedia and relative to randomness and probability, in
order to illustrate some debates of the scientific scene in USSR during the
1920s.

28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas