Yes, of course! The following are past experiences/events using English:

Orientation:

One day in the past, I attended an orientation at my new university. I met with my classmates and explained about the study program that we would follow. We are also given information about campus facilities, class schedules, and applicable regulations. This orientation helps us to understand the new environment and the necessary preparation to start our academic journey.

Series of Events:

During my last year at university, I was involved in a series of interesting events. First, there is a campus anniversary celebration that presents famous artists and various interesting performances. Apart from that, we also organize seminars and workshops conducted by leading experts in our field of study. Then, there is also a cultural festival that shows cultural diversity on campus. This series of events made my experience at university more colorful and memorable.

Re-Orientation:

After completing my study program, I decided to move to another city to start my career. When I arrived in a new city, I attended a re-orientation session organized by the company I work for. This session focuses on introducing us to the company culture, organizational structure and the tasks we will be doing. Re-orientation helped me to adapt to the new environment and understand the company's expectations of employees.

Those are some experiences and incidents in the past involving orientation, series of events, and re-orientation.