For making timelines, you might want to use Process based graphics.

have the possibility of a custom design (i.e. 1.Go to Insert -> SmartArt and pick a SmartArt Graphic.

create image-based design for better insight.

With the Image Timelines PowerPoint templates, You Can

Take advantage of the variety of pictures, captions and placeholders, which allow quick insight of what is said and thus promotes successful cooperation of all stakeholders. PowerPoint Timeline templates are generally used in. Whether you want to represent milestones of your organizations growth or year. In project presentations, project managers use timeline ppt templates to showcase their project information. With your team, use evaluations of past developments to optimize future processes. A timeline is probably one of the most used diagrams in a business presentation. Take advantage of the templates not only to plan major projects, but also to schedule and discuss weekly meetings and quarterly meetings. When inserting a new project timeline, the calendar is initially scaled to show some time before and some time after the current date. Use Image Timelines PowerPoint templates to determine goals for the future with your team in order to optimally plan processes and establish areas of responsibility accordingly. The 'imprinting effect' is particularly effective when the image timeline is visualized. Timelines display a sequence of events that allows quick insight of temporal contexts. Use Image Timelines to illustrate processes and event planning as well as goal setting.

Powerpoint timeline add in