Variety is a weekly American entertainment trade magazine and website owned by Penske Media Corporation. It was founded by Sime Silverman in New York in 1905 as a weekly; in 1933 it added Daily Variety, based in Los Angeles, to cover the motion-picture industry; in 1998 it brought out Daily Variety Gotham, based in New York. Variety.com features breaking entertainment news, reviews, box office results, cover stories, videos, photo galleries and more, plus a credits database, production charts and calendar, with archive content dating back to 1905. The last daily printed edition was put out on March 19, 2013. "Variety" originally reported on theater and vaudeville. 

"Variety" has been published since December 16, 1905, when it was launched by Sime Silverman as a weekly periodical covering vaudeville with its headquarters in New York City. 

On January 19, 1907, "Variety" published what is considered the first film review in history. 

In 1933, Sime Silverman launched "Daily Variety", based in Hollywood. 

Sime Silverman had passed on the editorship of the "Weekly Variety" to Abel Green as his replacement in 1931; he remained as publisher until his death in 1933 soon after launching the Daily. His son Sidne Silverman (1901–1950), known as "Skigie", succeeded him as publisher of both publications. Both Sidne and his wife, stage actress Marie Saxon (1905–1942), died of tuberculosis. Their only son Syd Silverman (1932-2017), was the sole heir to what was then Variety Inc. Young Syd's legal guardian Harold Erichs oversaw Variety Inc. until 1956. After that date Syd Silverman was publisher of both the "Weekly Variety" in New York and the "Daily Variety" in Hollywood, until the sale of both papers in 1987 to the Cahners Corp. In L.A. the Daily was edited by Tom Pryor from 1959 until 1988.
Who became editor of Weekly after Silverman?
Harold Erichs