When was Monet's famous painting Haystack created?

In 1990s, Monet created several groups of works, namely "group paintings". The so-called "group painting" refers to many paintings made by artists in the same position, facing the same object, at different times and under different illumination. This is probably a feature of Monet's later works. For example, during the period of 1890-9 1, for the same haystack, the painter painted different colors of the object in the sunshine in different seasons in the morning, middle and evening, as many as 15 times.