When does the Yankees' World Series drought become a curse?

Longest World Series droughts: MLB teams with long dry spell - Sports Illustrated

The Red Sox Renew Their Ownership of the Yankees in AL Wild Card - WSJ

Top 10 MLB Rivalries of All Time

2016 World Series - Wikipedia

Anthony Rizzo's winning ways a perfect fit for Yankees - Newsday

World Series droughts: Who's gone longest without winning a pennant?

Chicago Cubs break curse and make American sporting history

MLB London Series: Yankees and Red Sox greats recall championships, brawls and the Curse of the Bambino

The Yankees' World Series drought is resembling that of the Braves - Pinstripe Alley

Best attempts at repeat World Series since 2001

Longest time between World Series appearances

The 2016 World Series features 174 years of title drought. It's the longest in MLB history (2005 = 129 years and 2004 = 106 years). : r/baseball

Red Sox vanquish hated Yankees in historic fashion