I want to know the answer to the following question:
What pressure influenced the shift in South Africa from the use of European Dutch in the 1920s?
All the background I'm provided with is that "European Dutch remained the literary language until the start of the 1920s, when under pressure of Afrikaner nationalism the local "African" Dutch was preferred over the written, European-based standard.". Is that enough to answer the question?
Answer: yes