Explanation:

- Option 1: 1853 - The Suez Canal was not opened in this year. The early 1850s were a period of planning rather than execution.

- Option 2: 1921 - This year is far too late. The canal was already operational by then, contributing to global trade.

- Option 3: 1911 - Incorrect as well. By this time, the Suez Canal had been active for several decades.

- Option 4: 1869 - Correct year. The Suez Canal officially opened on November 17, 1869, allowing ships to travel between Europe and Asia without circumnavigating Africa.