This is the relevant information: Two of his best-known roles were as the timid accountant Bradford Webster in the television version of The Third Man and the fussy villain Dr. Zachary Smith of the 1960s science fiction series Lost in Space.
Jonathan Harris
Jonathan Harris (born Jonathan Daniel Charasuchin; November 6, 1914 -- November 3, 2002) was an American character actor. Two of his best-known roles were as the timid accountant Bradford Webster in the television version of The Third Man and the fussy villain Dr. Zachary Smith of the 1960s science fiction series Lost in Space. Near the end of his career, he provided voices for the animated features A Bug's Life and Toy Story 2.

Answer this question: who played dr. smith in the original lost in space series?

To answer the above question, the relevant sentence is: The Wall Street Crash of 1929, also known as Black Tuesday (October 29), the Great Crash, or the Stock Market Crash of 1929, began on October 24, 1929 ("Black Thursday"), and was the most devastating stock market crash in the history of the United States (acting as the most significant predicting indicator of the Great Depression), when taking into consideration the full extent and duration of its after effects.
the most devastating stock market crash in the history of the United States
The Wall Street Crash of 1929, also known as Black Tuesday (October 29), the Great Crash, or the Stock Market Crash of 1929, began on October 24, 1929 ("Black Thursday"), and was the most devastating stock market crash in the history of the United States (acting as the most significant predicting indicator of the Great Depression), when taking into consideration the full extent and duration of its after effects. The crash, which followed the London Stock Exchange's crash of September, signalled the beginning of the 12-year Great Depression that affected all Western industrialized countries.

Answer this question based on the passage: when was black tuesday and what happened on that date?

To answer this question, we should know that: Their work follows the International Gothic style and begins approximately with Robert Campin and Jan van Eyck in the early 1420s.
Robert Campin and Jan van Eyck
Context: Early Netherlandish painting is the work of artists, sometimes known as the Flemish Primitives, active in the Burgundian and Habsburg Netherlands during the 15th-and 16th-century Northern Renaissance; especially in the flourishing cities of Bruges, Ghent, Mechelen, Louvain, Tournai and Brussels, all in contemporary Belgium. Their work follows the International Gothic style and begins approximately with Robert Campin and Jan van Eyck in the early 1420s. It lasts at least until the death of Gerard David in 1523, although many scholars extend it to the start of the Dutch Revolt in 1566 or 1568 (Max J. Friedlander's acclaimed surveys run through Pieter Bruegel the Elder). Early Netherlandish painting coincides with the Early and High Italian Renaissance but is seen as an independent artistic culture, separate from the Renaissance humanism that characterised developments in Italy. Because these painters represent the culmination of the northern European medieval artistic heritage and the incorporation of Renaissance ideals, they are sometimes categorised as belonging to both the Early Renaissance and Late Gothic.

Question: who was one of the first artist to use the netherlandish style of painting?