{1} The plan was written in 1938 or 1909, but the Institute of Marxism-Leninism has no direct information on these lectures. Those who were there recall that Lenin read some lectures on philosophy in the Bolshevik circle in Paris in early 1909. Mention of industry in 1907 is an indication that the plan was written later than 1907, since the statistical data for that year could not have been available before the beginning of the following one.
The reference to “present-day opportunists (Bogdanov)” in point 6 of the section “Philosophical Materialism” implies that the plan was written not earlier than the second half of March 1908, just when (not later than April 3 [16]) Lenin had sent to the press his article “Marxism and Revisionism”, in which he made is first press attack on Bogdanov for his opportunist, revisionist views in philosophy. Almost all the points of the section “Philosophical Materialism” are reflected in his book “_Materialism and Empirio-Criticism_”; some points of the section “The Agrarian Question” are dealt with in his works on the agrarian question written in 1908. p. 221