How 2nd-Solution Provide Identical result set as first one?

SELECT
    e.first_name,
    e.last_name,
    e.hire_date,
    t.title,
    m.from_date,
    d.dept_name
FROM
    employees e
        JOIN
    dept_manager m ON e.emp_no = m.emp_no
        JOIN
    departments d ON m.dept_no = d.dept_no
        JOIN
    titles t ON e.emp_no = t.emp_no
         AND m.from_date = t.from_date
ORDER BY e.emp_no;

I just don't understand how this solution-2 works and provide same output as solution 1.
Mainly how and why

AND m.from_date = t.from_date

is added in 2nd solution. Can you help me to understand how above code deliver identical output as first one?  and why we have join last two tables on multiple columns/fields?