Arrange the facts from Einstein's life in chronological order.
(a) He was a university graduate and unemployed.
(b) Einstein was born in the German city of Ulm.
(c) He published his General Theory of Relativity.
(d) Einstein joins a university in Zurich.

Question

Accepted Answer

Here's the explanation supporting Option 1 as the correct chronological order of the given facts from Einstein's life:

**Why Option 1 (b, d, a, c) is correct:**

*   **(b) Einstein was born in the German city of Ulm:** This is the earliest event in his life, marking his birth and the beginning of his timeline. Therefore, it must come first.

*   **(d) Einstein joins a university in Zurich:** After his early education, a logical next step in his life would be attending university. Zurich was where he pursued higher education, placing this event after his birth.

*   **(a) He was a university graduate and unemployed:** After completing his university studies in Zurich, Einstein faced a period of unemployment before securing a stable position. Graduation precedes employment (or lack thereof), making this a logical successor to joining the university.

*   **(c) He published his General Theory of Relativity:** The publication of the General Theory of Relativity was a significant achievement that occurred much later in his career, after he had already graduated, struggled with unemployment, and established himself as a physicist. This is the latest event among the options.

**Why the other options are incorrect:**

*   **Option 2 (c, d, a, b):** This is incorrect because it places the publication of the General Theory of Relativity *before* he even attended university in Zurich and before he was born. This is chronologically impossible.

*   **Option 3 (b, d, c, a):** This is incorrect because it places the publication of the General Theory of Relativity *before* he was a university graduate and unemployed. The theory was published after he had already completed his studies and worked for some time.

*   **Option 4 (b, c, d, a):** This is incorrect because it places the publication of the General Theory of Relativity *before* he joined the university in Zurich. He needed to attend university and develop his understanding of physics before he could develop and publish such a groundbreaking theory.